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Finding the Fourth Proportional to 662,648.80, 914,463.12 and 360,842.80

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Solution

The fourth proportional to 662,648.80, 914,463.12 and 360,842.80 is: 497,967.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,648.80 : 914,463.12 = 360,842.80 : x
  2. Step 2: Convert to fraction form
    662,648.80/914,463.12 = 360,842.80/x
  3. Step 3: Cross multiply
    662,648.80x = 914,463.12 × 360,842.80
  4. Step 4: Simplify right side
    662,648.80x = 329,977,432,717.54
  5. Step 5: Solve for x
    x = 329,977,432,717.54/662,648.80
  6. Step 6: Final answer
    x = 497,967.30

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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.