Home / 749,287.40-1,123,931.10-520,964.60

Finding the Fourth Proportional to 749,287.40, 1,123,931.10 and 520,964.60

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Solution

The fourth proportional to 749,287.40, 1,123,931.10 and 520,964.60 is: 781,446.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,287.40 : 1,123,931.10 = 520,964.60 : x
  2. Step 2: Convert to fraction form
    749,287.40/1,123,931.10 = 520,964.60/x
  3. Step 3: Cross multiply
    749,287.40x = 1,123,931.10 × 520,964.60
  4. Step 4: Simplify right side
    749,287.40x = 585,528,315,939.06
  5. Step 5: Solve for x
    x = 585,528,315,939.06/749,287.40
  6. Step 6: Final answer
    x = 781,446.90

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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.