Home / 929,401.20-1,395,138.60-868,489.20

Finding the Fourth Proportional to 929,401.20, 1,395,138.60 and 868,489.20

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Solution

The fourth proportional to 929,401.20, 1,395,138.60 and 868,489.20 is: 1,303,702.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,401.20 : 1,395,138.60 = 868,489.20 : x
  2. Step 2: Convert to fraction form
    929,401.20/1,395,138.60 = 868,489.20/x
  3. Step 3: Cross multiply
    929,401.20x = 1,395,138.60 × 868,489.20
  4. Step 4: Simplify right side
    929,401.20x = 1,211,662,806,603.12
  5. Step 5: Solve for x
    x = 1,211,662,806,603.12/929,401.20
  6. Step 6: Final answer
    x = 1,303,702.65

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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.