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Finding the Fourth Proportional to 499,231.55, 688,987.76 and 295,348.02

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Solution

The fourth proportional to 499,231.55, 688,987.76 and 295,348.02 is: 407,608.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,231.55 : 688,987.76 = 295,348.02 : x
  2. Step 2: Convert to fraction form
    499,231.55/688,987.76 = 295,348.02/x
  3. Step 3: Cross multiply
    499,231.55x = 688,987.76 × 295,348.02
  4. Step 4: Simplify right side
    499,231.55x = 203,491,169,243.50
  5. Step 5: Solve for x
    x = 203,491,169,243.50/499,231.55
  6. Step 6: Final answer
    x = 407,608.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.