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Finding the Fourth Proportional to 559,189.80, 838,085.22 and 440,391.96

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Solution

The fourth proportional to 559,189.80, 838,085.22 and 440,391.96 is: 660,037.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,189.80 : 838,085.22 = 440,391.96 : x
  2. Step 2: Convert to fraction form
    559,189.80/838,085.22 = 440,391.96/x
  3. Step 3: Cross multiply
    559,189.80x = 838,085.22 × 440,391.96
  4. Step 4: Simplify right side
    559,189.80x = 369,085,992,682.83
  5. Step 5: Solve for x
    x = 369,085,992,682.83/559,189.80
  6. Step 6: Final answer
    x = 660,037.06

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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.