Home / 749,676.11-1,123,833.75-389,425.87

Finding the Fourth Proportional to 749,676.11, 1,123,833.75 and 389,425.87

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Solution

The fourth proportional to 749,676.11, 1,123,833.75 and 389,425.87 is: 583,785.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,676.11 : 1,123,833.75 = 389,425.87 : x
  2. Step 2: Convert to fraction form
    749,676.11/1,123,833.75 = 389,425.87/x
  3. Step 3: Cross multiply
    749,676.11x = 1,123,833.75 × 389,425.87
  4. Step 4: Simplify right side
    749,676.11x = 437,649,933,019.53
  5. Step 5: Solve for x
    x = 437,649,933,019.53/749,676.11
  6. Step 6: Final answer
    x = 583,785.36

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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.