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Finding the Fourth Proportional to 559,987.20, 838,231.20 and 402,523.20

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Solution

The fourth proportional to 559,987.20, 838,231.20 and 402,523.20 is: 602,527.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,987.20 : 838,231.20 = 402,523.20 : x
  2. Step 2: Convert to fraction form
    559,987.20/838,231.20 = 402,523.20/x
  3. Step 3: Cross multiply
    559,987.20x = 838,231.20 × 402,523.20
  4. Step 4: Simplify right side
    559,987.20x = 337,407,504,963.84
  5. Step 5: Solve for x
    x = 337,407,504,963.84/559,987.20
  6. Step 6: Final answer
    x = 602,527.17

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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.