Home / 890,980.05-1,337,610.57-765,423.57

Finding the Fourth Proportional to 890,980.05, 1,337,610.57 and 765,423.57

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Solution

The fourth proportional to 890,980.05, 1,337,610.57 and 765,423.57 is: 1,149,115.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,980.05 : 1,337,610.57 = 765,423.57 : x
  2. Step 2: Convert to fraction form
    890,980.05/1,337,610.57 = 765,423.57/x
  3. Step 3: Cross multiply
    890,980.05x = 1,337,610.57 × 765,423.57
  4. Step 4: Simplify right side
    890,980.05x = 1,023,838,657,759.13
  5. Step 5: Solve for x
    x = 1,023,838,657,759.13/890,980.05
  6. Step 6: Final answer
    x = 1,149,115.13

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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.