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Finding the Fourth Proportional to 518,805.54, 715,945.23 and 292,451.04

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Solution

The fourth proportional to 518,805.54, 715,945.23 and 292,451.04 is: 403,578.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,805.54 : 715,945.23 = 292,451.04 : x
  2. Step 2: Convert to fraction form
    518,805.54/715,945.23 = 292,451.04/x
  3. Step 3: Cross multiply
    518,805.54x = 715,945.23 × 292,451.04
  4. Step 4: Simplify right side
    518,805.54x = 209,378,927,096.54
  5. Step 5: Solve for x
    x = 209,378,927,096.54/518,805.54
  6. Step 6: Final answer
    x = 403,578.82

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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.