Home / 749,764.60-1,123,286.10-433,281.40

Finding the Fourth Proportional to 749,764.60, 1,123,286.10 and 433,281.40

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Solution

The fourth proportional to 749,764.60, 1,123,286.10 and 433,281.40 is: 649,135.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,764.60 : 1,123,286.10 = 433,281.40 : x
  2. Step 2: Convert to fraction form
    749,764.60/1,123,286.10 = 433,281.40/x
  3. Step 3: Cross multiply
    749,764.60x = 1,123,286.10 × 433,281.40
  4. Step 4: Simplify right side
    749,764.60x = 486,698,974,008.54
  5. Step 5: Solve for x
    x = 486,698,974,008.54/749,764.60
  6. Step 6: Final answer
    x = 649,135.71

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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.