Home / 814,661.26-1,221,631.04-435,490.14

Finding the Fourth Proportional to 814,661.26, 1,221,631.04 and 435,490.14

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Solution

The fourth proportional to 814,661.26, 1,221,631.04 and 435,490.14 is: 653,042.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,661.26 : 1,221,631.04 = 435,490.14 : x
  2. Step 2: Convert to fraction form
    814,661.26/1,221,631.04 = 435,490.14/x
  3. Step 3: Cross multiply
    814,661.26x = 1,221,631.04 × 435,490.14
  4. Step 4: Simplify right side
    814,661.26x = 532,008,272,637.95
  5. Step 5: Solve for x
    x = 532,008,272,637.95/814,661.26
  6. Step 6: Final answer
    x = 653,042.31

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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.