Home / 721,916.32-1,083,939-402,691.92

Finding the Fourth Proportional to 721,916.32, 1,083,939 and 402,691.92

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Solution

The fourth proportional to 721,916.32, 1,083,939 and 402,691.92 is: 604,631.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,916.32 : 1,083,939 = 402,691.92 : x
  2. Step 2: Convert to fraction form
    721,916.32/1,083,939 = 402,691.92/x
  3. Step 3: Cross multiply
    721,916.32x = 1,083,939 × 402,691.92
  4. Step 4: Simplify right side
    721,916.32x = 436,493,477,072.88
  5. Step 5: Solve for x
    x = 436,493,477,072.88/721,916.32
  6. Step 6: Final answer
    x = 604,631.68

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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.