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Finding the Fourth Proportional to 665,487.28, 998,624.04 and 349,968.52

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Solution

The fourth proportional to 665,487.28, 998,624.04 and 349,968.52 is: 525,159.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,487.28 : 998,624.04 = 349,968.52 : x
  2. Step 2: Convert to fraction form
    665,487.28/998,624.04 = 349,968.52/x
  3. Step 3: Cross multiply
    665,487.28x = 998,624.04 × 349,968.52
  4. Step 4: Simplify right side
    665,487.28x = 349,486,977,315.22
  5. Step 5: Solve for x
    x = 349,486,977,315.22/665,487.28
  6. Step 6: Final answer
    x = 525,159.52

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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.