Home / 728,916.06-1,006,014.96-442,380.72

Finding the Fourth Proportional to 728,916.06, 1,006,014.96 and 442,380.72

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Solution

The fourth proportional to 728,916.06, 1,006,014.96 and 442,380.72 is: 610,552.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,916.06 : 1,006,014.96 = 442,380.72 : x
  2. Step 2: Convert to fraction form
    728,916.06/1,006,014.96 = 442,380.72/x
  3. Step 3: Cross multiply
    728,916.06x = 1,006,014.96 × 442,380.72
  4. Step 4: Simplify right side
    728,916.06x = 445,041,622,335.57
  5. Step 5: Solve for x
    x = 445,041,622,335.57/728,916.06
  6. Step 6: Final answer
    x = 610,552.64

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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.