Home / 728,473.04-1,092,447.12-307,781.72

Finding the Fourth Proportional to 728,473.04, 1,092,447.12 and 307,781.72

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Solution

The fourth proportional to 728,473.04, 1,092,447.12 and 307,781.72 is: 461,561.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,473.04 : 1,092,447.12 = 307,781.72 : x
  2. Step 2: Convert to fraction form
    728,473.04/1,092,447.12 = 307,781.72/x
  3. Step 3: Cross multiply
    728,473.04x = 1,092,447.12 × 307,781.72
  4. Step 4: Simplify right side
    728,473.04x = 336,235,253,602.65
  5. Step 5: Solve for x
    x = 336,235,253,602.65/728,473.04
  6. Step 6: Final answer
    x = 461,561.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.