Home / 487,285.07-731,052.18-187,685.24

Finding the Fourth Proportional to 487,285.07, 731,052.18 and 187,685.24

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Solution

The fourth proportional to 487,285.07, 731,052.18 and 187,685.24 is: 281,575.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,285.07 : 731,052.18 = 187,685.24 : x
  2. Step 2: Convert to fraction form
    487,285.07/731,052.18 = 187,685.24/x
  3. Step 3: Cross multiply
    487,285.07x = 731,052.18 × 187,685.24
  4. Step 4: Simplify right side
    487,285.07x = 137,207,700,200.56
  5. Step 5: Solve for x
    x = 137,207,700,200.56/487,285.07
  6. Step 6: Final answer
    x = 281,575.84

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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.