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Finding the Fourth Proportional to 463,920.92, 640,226.63 and 442,663.28

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Solution

The fourth proportional to 463,920.92, 640,226.63 and 442,663.28 is: 610,890.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,920.92 : 640,226.63 = 442,663.28 : x
  2. Step 2: Convert to fraction form
    463,920.92/640,226.63 = 442,663.28/x
  3. Step 3: Cross multiply
    463,920.92x = 640,226.63 × 442,663.28
  4. Step 4: Simplify right side
    463,920.92x = 283,404,817,795.54
  5. Step 5: Solve for x
    x = 283,404,817,795.54/463,920.92
  6. Step 6: Final answer
    x = 610,890.36

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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.