Home / 872,969.93-1,309,073.17-440,421.27

Finding the Fourth Proportional to 872,969.93, 1,309,073.17 and 440,421.27

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Solution

The fourth proportional to 872,969.93, 1,309,073.17 and 440,421.27 is: 660,439.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,969.93 : 1,309,073.17 = 440,421.27 : x
  2. Step 2: Convert to fraction form
    872,969.93/1,309,073.17 = 440,421.27/x
  3. Step 3: Cross multiply
    872,969.93x = 1,309,073.17 × 440,421.27
  4. Step 4: Simplify right side
    872,969.93x = 576,543,669,124.90
  5. Step 5: Solve for x
    x = 576,543,669,124.90/872,969.93
  6. Step 6: Final answer
    x = 660,439.32

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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.