Home / 1,500,229.80-2,070,323.73-811,901.79

Finding the Fourth Proportional to 1,500,229.80, 2,070,323.73 and 811,901.79

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Solution

The fourth proportional to 1,500,229.80, 2,070,323.73 and 811,901.79 is: 1,120,428.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,229.80 : 2,070,323.73 = 811,901.79 : x
  2. Step 2: Convert to fraction form
    1,500,229.80/2,070,323.73 = 811,901.79/x
  3. Step 3: Cross multiply
    1,500,229.80x = 2,070,323.73 × 811,901.79
  4. Step 4: Simplify right side
    1,500,229.80x = 1,680,899,542,266.48
  5. Step 5: Solve for x
    x = 1,680,899,542,266.48/1,500,229.80
  6. Step 6: Final answer
    x = 1,120,428.05

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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.