Home / 749,289.40-1,123,934.10-520,966.60

Finding the Fourth Proportional to 749,289.40, 1,123,934.10 and 520,966.60

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Solution

The fourth proportional to 749,289.40, 1,123,934.10 and 520,966.60 is: 781,449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,289.40 : 1,123,934.10 = 520,966.60 : x
  2. Step 2: Convert to fraction form
    749,289.40/1,123,934.10 = 520,966.60/x
  3. Step 3: Cross multiply
    749,289.40x = 1,123,934.10 × 520,966.60
  4. Step 4: Simplify right side
    749,289.40x = 585,532,126,701.06
  5. Step 5: Solve for x
    x = 585,532,126,701.06/749,289.40
  6. Step 6: Final answer
    x = 781,449.90

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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.