Home / 868,841.10-1,303,261.65-721,874.70

Finding the Fourth Proportional to 868,841.10, 1,303,261.65 and 721,874.70

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Solution

The fourth proportional to 868,841.10, 1,303,261.65 and 721,874.70 is: 1,082,812.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,841.10 : 1,303,261.65 = 721,874.70 : x
  2. Step 2: Convert to fraction form
    868,841.10/1,303,261.65 = 721,874.70/x
  3. Step 3: Cross multiply
    868,841.10x = 1,303,261.65 × 721,874.70
  4. Step 4: Simplify right side
    868,841.10x = 940,791,612,615.26
  5. Step 5: Solve for x
    x = 940,791,612,615.26/868,841.10
  6. Step 6: Final answer
    x = 1,082,812.05

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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.