Home / 728,741.66-1,005,664.92-406,472.63

Finding the Fourth Proportional to 728,741.66, 1,005,664.92 and 406,472.63

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Solution

The fourth proportional to 728,741.66, 1,005,664.92 and 406,472.63 is: 560,933.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,741.66 : 1,005,664.92 = 406,472.63 : x
  2. Step 2: Convert to fraction form
    728,741.66/1,005,664.92 = 406,472.63/x
  3. Step 3: Cross multiply
    728,741.66x = 1,005,664.92 × 406,472.63
  4. Step 4: Simplify right side
    728,741.66x = 408,775,264,035.41
  5. Step 5: Solve for x
    x = 408,775,264,035.41/728,741.66
  6. Step 6: Final answer
    x = 560,933.02

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Double scale
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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.