Home / 1,351,131.18-1,864,720.89-762,445.86

Finding the Fourth Proportional to 1,351,131.18, 1,864,720.89 and 762,445.86

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Solution

The fourth proportional to 1,351,131.18, 1,864,720.89 and 762,445.86 is: 1,052,265.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,131.18 : 1,864,720.89 = 762,445.86 : x
  2. Step 2: Convert to fraction form
    1,351,131.18/1,864,720.89 = 762,445.86/x
  3. Step 3: Cross multiply
    1,351,131.18x = 1,864,720.89 × 762,445.86
  4. Step 4: Simplify right side
    1,351,131.18x = 1,421,748,722,636.02
  5. Step 5: Solve for x
    x = 1,421,748,722,636.02/1,351,131.18
  6. Step 6: Final answer
    x = 1,052,265.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.