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Finding the Fourth Proportional to 633,316.32, 949,872.42 and 278,264.16

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Solution

The fourth proportional to 633,316.32, 949,872.42 and 278,264.16 is: 417,351.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,316.32 : 949,872.42 = 278,264.16 : x
  2. Step 2: Convert to fraction form
    633,316.32/949,872.42 = 278,264.16/x
  3. Step 3: Cross multiply
    633,316.32x = 949,872.42 × 278,264.16
  4. Step 4: Simplify right side
    633,316.32x = 264,315,451,058.47
  5. Step 5: Solve for x
    x = 264,315,451,058.47/633,316.32
  6. Step 6: Final answer
    x = 417,351.40

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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.