Home / 391,621.46-587,318.23-151,681.85

Finding the Fourth Proportional to 391,621.46, 587,318.23 and 151,681.85

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Solution

The fourth proportional to 391,621.46, 587,318.23 and 151,681.85 is: 227,478.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,621.46 : 587,318.23 = 151,681.85 : x
  2. Step 2: Convert to fraction form
    391,621.46/587,318.23 = 151,681.85/x
  3. Step 3: Cross multiply
    391,621.46x = 587,318.23 × 151,681.85
  4. Step 4: Simplify right side
    391,621.46x = 89,085,515,547.19
  5. Step 5: Solve for x
    x = 89,085,515,547.19/391,621.46
  6. Step 6: Final answer
    x = 227,478.63

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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.