Home / 747,418.76-1,031,437.61-407,887.01

Finding the Fourth Proportional to 747,418.76, 1,031,437.61 and 407,887.01

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Solution

The fourth proportional to 747,418.76, 1,031,437.61 and 407,887.01 is: 562,883.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,418.76 : 1,031,437.61 = 407,887.01 : x
  2. Step 2: Convert to fraction form
    747,418.76/1,031,437.61 = 407,887.01/x
  3. Step 3: Cross multiply
    747,418.76x = 1,031,437.61 × 407,887.01
  4. Step 4: Simplify right side
    747,418.76x = 420,710,000,705.01
  5. Step 5: Solve for x
    x = 420,710,000,705.01/747,418.76
  6. Step 6: Final answer
    x = 562,883.92

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Double scale
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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.