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Finding the Fourth Proportional to 631,000.40, 944,657.40 and 564,645.20

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Solution

The fourth proportional to 631,000.40, 944,657.40 and 564,645.20 is: 845,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,000.40 : 944,657.40 = 564,645.20 : x
  2. Step 2: Convert to fraction form
    631,000.40/944,657.40 = 564,645.20/x
  3. Step 3: Cross multiply
    631,000.40x = 944,657.40 × 564,645.20
  4. Step 4: Simplify right side
    631,000.40x = 533,396,266,554.48
  5. Step 5: Solve for x
    x = 533,396,266,554.48/631,000.40
  6. Step 6: Final answer
    x = 845,318.43

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.