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Finding the Fourth Proportional to 559,170.80, 838,056.72 and 440,372.96

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Solution

The fourth proportional to 559,170.80, 838,056.72 and 440,372.96 is: 660,008.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,170.80 : 838,056.72 = 440,372.96 : x
  2. Step 2: Convert to fraction form
    559,170.80/838,056.72 = 440,372.96/x
  3. Step 3: Cross multiply
    559,170.80x = 838,056.72 × 440,372.96
  4. Step 4: Simplify right side
    559,170.80x = 369,057,518,434.29
  5. Step 5: Solve for x
    x = 369,057,518,434.29/559,170.80
  6. Step 6: Final answer
    x = 660,008.57

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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.