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Finding the Fourth Proportional to 658,775.18, 909,102.17 and 356,969.18

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Solution

The fourth proportional to 658,775.18, 909,102.17 and 356,969.18 is: 492,613.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,775.18 : 909,102.17 = 356,969.18 : x
  2. Step 2: Convert to fraction form
    658,775.18/909,102.17 = 356,969.18/x
  3. Step 3: Cross multiply
    658,775.18x = 909,102.17 × 356,969.18
  4. Step 4: Simplify right side
    658,775.18x = 324,521,459,326.30
  5. Step 5: Solve for x
    x = 324,521,459,326.30/658,775.18
  6. Step 6: Final answer
    x = 492,613.36

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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.