Home / 749,327.40-1,123,991.10-433,621.80

Finding the Fourth Proportional to 749,327.40, 1,123,991.10 and 433,621.80

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Solution

The fourth proportional to 749,327.40, 1,123,991.10 and 433,621.80 is: 650,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,327.40 : 1,123,991.10 = 433,621.80 : x
  2. Step 2: Convert to fraction form
    749,327.40/1,123,991.10 = 433,621.80/x
  3. Step 3: Cross multiply
    749,327.40x = 1,123,991.10 × 433,621.80
  4. Step 4: Simplify right side
    749,327.40x = 487,387,043,965.98
  5. Step 5: Solve for x
    x = 487,387,043,965.98/749,327.40
  6. Step 6: Final answer
    x = 650,432.70

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Half scale
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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.