Home / 749,167.31-1,123,401.58-389,241.39

Finding the Fourth Proportional to 749,167.31, 1,123,401.58 and 389,241.39

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Solution

The fourth proportional to 749,167.31, 1,123,401.58 and 389,241.39 is: 583,680.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,167.31 : 1,123,401.58 = 389,241.39 : x
  2. Step 2: Convert to fraction form
    749,167.31/1,123,401.58 = 389,241.39/x
  3. Step 3: Cross multiply
    749,167.31x = 1,123,401.58 × 389,241.39
  4. Step 4: Simplify right side
    749,167.31x = 437,274,397,226.70
  5. Step 5: Solve for x
    x = 437,274,397,226.70/749,167.31
  6. Step 6: Final answer
    x = 583,680.57

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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.