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Finding the Fourth Proportional to 754,145.64, 1,130,978.04 and 248,612.40

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Solution

The fourth proportional to 754,145.64, 1,130,978.04 and 248,612.40 is: 372,839.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,145.64 : 1,130,978.04 = 248,612.40 : x
  2. Step 2: Convert to fraction form
    754,145.64/1,130,978.04 = 248,612.40/x
  3. Step 3: Cross multiply
    754,145.64x = 1,130,978.04 × 248,612.40
  4. Step 4: Simplify right side
    754,145.64x = 281,175,164,871.70
  5. Step 5: Solve for x
    x = 281,175,164,871.70/754,145.64
  6. Step 6: Final answer
    x = 372,839.34

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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.