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Finding the Fourth Proportional to 660,394.72, 913,179.20 and 524,192.21

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Solution

The fourth proportional to 660,394.72, 913,179.20 and 524,192.21 is: 724,841.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,394.72 : 913,179.20 = 524,192.21 : x
  2. Step 2: Convert to fraction form
    660,394.72/913,179.20 = 524,192.21/x
  3. Step 3: Cross multiply
    660,394.72x = 913,179.20 × 524,192.21
  4. Step 4: Simplify right side
    660,394.72x = 478,681,419,823.70
  5. Step 5: Solve for x
    x = 478,681,419,823.70/660,394.72
  6. Step 6: Final answer
    x = 724,841.38

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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.