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Finding the Fourth Proportional to 559,200.80, 838,101.72 and 440,402.96

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Solution

The fourth proportional to 559,200.80, 838,101.72 and 440,402.96 is: 660,053.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,200.80 : 838,101.72 = 440,402.96 : x
  2. Step 2: Convert to fraction form
    559,200.80/838,101.72 = 440,402.96/x
  3. Step 3: Cross multiply
    559,200.80x = 838,101.72 × 440,402.96
  4. Step 4: Simplify right side
    559,200.80x = 369,102,478,269.09
  5. Step 5: Solve for x
    x = 369,102,478,269.09/559,200.80
  6. Step 6: Final answer
    x = 660,053.56

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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.