Home / 1,187,998.40-1,781,997.60-873,070.40

Finding the Fourth Proportional to 1,187,998.40, 1,781,997.60 and 873,070.40

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Solution

The fourth proportional to 1,187,998.40, 1,781,997.60 and 873,070.40 is: 1,309,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,998.40 : 1,781,997.60 = 873,070.40 : x
  2. Step 2: Convert to fraction form
    1,187,998.40/1,781,997.60 = 873,070.40/x
  3. Step 3: Cross multiply
    1,187,998.40x = 1,781,997.60 × 873,070.40
  4. Step 4: Simplify right side
    1,187,998.40x = 1,555,809,357,431.04
  5. Step 5: Solve for x
    x = 1,555,809,357,431.04/1,187,998.40
  6. Step 6: Final answer
    x = 1,309,605.60

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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.