Home / 871,387.20-1,303,581.60-754,358.40

Finding the Fourth Proportional to 871,387.20, 1,303,581.60 and 754,358.40

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Solution

The fourth proportional to 871,387.20, 1,303,581.60 and 754,358.40 is: 1,128,508.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,387.20 : 1,303,581.60 = 754,358.40 : x
  2. Step 2: Convert to fraction form
    871,387.20/1,303,581.60 = 754,358.40/x
  3. Step 3: Cross multiply
    871,387.20x = 1,303,581.60 × 754,358.40
  4. Step 4: Simplify right side
    871,387.20x = 983,367,730,045.44
  5. Step 5: Solve for x
    x = 983,367,730,045.44/871,387.20
  6. Step 6: Final answer
    x = 1,128,508.35

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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.