Home / 712,778.72-1,069,327.67-239,451.17

Finding the Fourth Proportional to 712,778.72, 1,069,327.67 and 239,451.17

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Solution

The fourth proportional to 712,778.72, 1,069,327.67 and 239,451.17 is: 359,230.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,778.72 : 1,069,327.67 = 239,451.17 : x
  2. Step 2: Convert to fraction form
    712,778.72/1,069,327.67 = 239,451.17/x
  3. Step 3: Cross multiply
    712,778.72x = 1,069,327.67 × 239,451.17
  4. Step 4: Simplify right side
    712,778.72x = 256,051,755,150.98
  5. Step 5: Solve for x
    x = 256,051,755,150.98/712,778.72
  6. Step 6: Final answer
    x = 359,230.36

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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.