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Finding the Fourth Proportional to 802,959.70, 1,108,081.20 and 440,374

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Solution

The fourth proportional to 802,959.70, 1,108,081.20 and 440,374 is: 607,714.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,959.70 : 1,108,081.20 = 440,374 : x
  2. Step 2: Convert to fraction form
    802,959.70/1,108,081.20 = 440,374/x
  3. Step 3: Cross multiply
    802,959.70x = 1,108,081.20 × 440,374
  4. Step 4: Simplify right side
    802,959.70x = 487,970,150,368.80
  5. Step 5: Solve for x
    x = 487,970,150,368.80/802,959.70
  6. Step 6: Final answer
    x = 607,714.37

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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.