Home / 1,107,810.90-1,662,372.45-807,535.80

Finding the Fourth Proportional to 1,107,810.90, 1,662,372.45 and 807,535.80

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Solution

The fourth proportional to 1,107,810.90, 1,662,372.45 and 807,535.80 is: 1,211,781.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,810.90 : 1,662,372.45 = 807,535.80 : x
  2. Step 2: Convert to fraction form
    1,107,810.90/1,662,372.45 = 807,535.80/x
  3. Step 3: Cross multiply
    1,107,810.90x = 1,662,372.45 × 807,535.80
  4. Step 4: Simplify right side
    1,107,810.90x = 1,342,425,266,308.71
  5. Step 5: Solve for x
    x = 1,342,425,266,308.71/1,107,810.90
  6. Step 6: Final answer
    x = 1,211,781.96

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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.