Home / 762,440.76-1,052,294.49-423,018.36

Finding the Fourth Proportional to 762,440.76, 1,052,294.49 and 423,018.36

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Solution

The fourth proportional to 762,440.76, 1,052,294.49 and 423,018.36 is: 583,835.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,440.76 : 1,052,294.49 = 423,018.36 : x
  2. Step 2: Convert to fraction form
    762,440.76/1,052,294.49 = 423,018.36/x
  3. Step 3: Cross multiply
    762,440.76x = 1,052,294.49 × 423,018.36
  4. Step 4: Simplify right side
    762,440.76x = 445,139,889,396.84
  5. Step 5: Solve for x
    x = 445,139,889,396.84/762,440.76
  6. Step 6: Final answer
    x = 583,835.38

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.