Home / 729,038.10-1,093,557.15-393,114.90

Finding the Fourth Proportional to 729,038.10, 1,093,557.15 and 393,114.90

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Solution

The fourth proportional to 729,038.10, 1,093,557.15 and 393,114.90 is: 589,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,038.10 : 1,093,557.15 = 393,114.90 : x
  2. Step 2: Convert to fraction form
    729,038.10/1,093,557.15 = 393,114.90/x
  3. Step 3: Cross multiply
    729,038.10x = 1,093,557.15 × 393,114.90
  4. Step 4: Simplify right side
    729,038.10x = 429,893,609,666.54
  5. Step 5: Solve for x
    x = 429,893,609,666.54/729,038.10
  6. Step 6: Final answer
    x = 589,672.35

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Double scale
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Similar ratio
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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.