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Finding the Fourth Proportional to 802,958.70, 1,108,079.82 and 440,373

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Solution

The fourth proportional to 802,958.70, 1,108,079.82 and 440,373 is: 607,712.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,958.70 : 1,108,079.82 = 440,373 : x
  2. Step 2: Convert to fraction form
    802,958.70/1,108,079.82 = 440,373/x
  3. Step 3: Cross multiply
    802,958.70x = 1,108,079.82 × 440,373
  4. Step 4: Simplify right side
    802,958.70x = 487,968,434,572.86
  5. Step 5: Solve for x
    x = 487,968,434,572.86/802,958.70
  6. Step 6: Final answer
    x = 607,712.99

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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.