Home / 1,721,807.80-2,581,790.10-723,407.80

Finding the Fourth Proportional to 1,721,807.80, 2,581,790.10 and 723,407.80

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Solution

The fourth proportional to 1,721,807.80, 2,581,790.10 and 723,407.80 is: 1,084,724.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721,807.80 : 2,581,790.10 = 723,407.80 : x
  2. Step 2: Convert to fraction form
    1,721,807.80/2,581,790.10 = 723,407.80/x
  3. Step 3: Cross multiply
    1,721,807.80x = 2,581,790.10 × 723,407.80
  4. Step 4: Simplify right side
    1,721,807.80x = 1,867,687,096,302.78
  5. Step 5: Solve for x
    x = 1,867,687,096,302.78/1,721,807.80
  6. Step 6: Final answer
    x = 1,084,724.49

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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.