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Finding the Fourth Proportional to 761.34, 1,050.12 and 462.36

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Solution

The fourth proportional to 761.34, 1,050.12 and 462.36 is: 637.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    761.34 : 1,050.12 = 462.36 : x
  2. Step 2: Convert to fraction form
    761.34/1,050.12 = 462.36/x
  3. Step 3: Cross multiply
    761.34x = 1,050.12 × 462.36
  4. Step 4: Simplify right side
    761.34x = 485,533.48
  5. Step 5: Solve for x
    x = 485,533.48/761.34
  6. Step 6: Final answer
    x = 637.74

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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.