Home / 1,812,139.80-2,720,309.46-972,331.80

Finding the Fourth Proportional to 1,812,139.80, 2,720,309.46 and 972,331.80

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Solution

The fourth proportional to 1,812,139.80, 2,720,309.46 and 972,331.80 is: 1,459,624.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812,139.80 : 2,720,309.46 = 972,331.80 : x
  2. Step 2: Convert to fraction form
    1,812,139.80/2,720,309.46 = 972,331.80/x
  3. Step 3: Cross multiply
    1,812,139.80x = 2,720,309.46 × 972,331.80
  4. Step 4: Simplify right side
    1,812,139.80x = 2,645,043,393,798.83
  5. Step 5: Solve for x
    x = 2,645,043,393,798.83/1,812,139.80
  6. Step 6: Final answer
    x = 1,459,624.36

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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.