Home / 1,045,162.28-1,442,585.22-642,521

Finding the Fourth Proportional to 1,045,162.28, 1,442,585.22 and 642,521

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Solution

The fourth proportional to 1,045,162.28, 1,442,585.22 and 642,521 is: 886,839.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045,162.28 : 1,442,585.22 = 642,521 : x
  2. Step 2: Convert to fraction form
    1,045,162.28/1,442,585.22 = 642,521/x
  3. Step 3: Cross multiply
    1,045,162.28x = 1,442,585.22 × 642,521
  4. Step 4: Simplify right side
    1,045,162.28x = 926,891,298,139.62
  5. Step 5: Solve for x
    x = 926,891,298,139.62/1,045,162.28
  6. Step 6: Final answer
    x = 886,839.60

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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.