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Finding the Fourth Proportional to 607,718.90, 912,150.46 and 308,414.28

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Solution

The fourth proportional to 607,718.90, 912,150.46 and 308,414.28 is: 462,911.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,718.90 : 912,150.46 = 308,414.28 : x
  2. Step 2: Convert to fraction form
    607,718.90/912,150.46 = 308,414.28/x
  3. Step 3: Cross multiply
    607,718.90x = 912,150.46 × 308,414.28
  4. Step 4: Simplify right side
    607,718.90x = 281,320,224,321.16
  5. Step 5: Solve for x
    x = 281,320,224,321.16/607,718.90
  6. Step 6: Final answer
    x = 462,911.76

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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.