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Finding the Fourth Proportional to 518,491.76, 715,592.76 and 292,158.32

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Solution

The fourth proportional to 518,491.76, 715,592.76 and 292,158.32 is: 403,220.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,491.76 : 715,592.76 = 292,158.32 : x
  2. Step 2: Convert to fraction form
    518,491.76/715,592.76 = 292,158.32/x
  3. Step 3: Cross multiply
    518,491.76x = 715,592.76 × 292,158.32
  4. Step 4: Simplify right side
    518,491.76x = 209,066,378,565.76
  5. Step 5: Solve for x
    x = 209,066,378,565.76/518,491.76
  6. Step 6: Final answer
    x = 403,220.25

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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.