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Finding the Fourth Proportional to 518,728.04, 715,850.15 and 292,373.54

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Solution

The fourth proportional to 518,728.04, 715,850.15 and 292,373.54 is: 403,478.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,728.04 : 715,850.15 = 292,373.54 : x
  2. Step 2: Convert to fraction form
    518,728.04/715,850.15 = 292,373.54/x
  3. Step 3: Cross multiply
    518,728.04x = 715,850.15 × 292,373.54
  4. Step 4: Simplify right side
    518,728.04x = 209,295,637,423.91
  5. Step 5: Solve for x
    x = 209,295,637,423.91/518,728.04
  6. Step 6: Final answer
    x = 403,478.55

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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.