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Finding the Fourth Proportional to 633,318.32, 949,875.42 and 278,266.16

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Solution

The fourth proportional to 633,318.32, 949,875.42 and 278,266.16 is: 417,354.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,318.32 : 949,875.42 = 278,266.16 : x
  2. Step 2: Convert to fraction form
    633,318.32/949,875.42 = 278,266.16/x
  3. Step 3: Cross multiply
    633,318.32x = 949,875.42 × 278,266.16
  4. Step 4: Simplify right side
    633,318.32x = 264,318,185,601.79
  5. Step 5: Solve for x
    x = 264,318,185,601.79/633,318.32
  6. Step 6: Final answer
    x = 417,354.40

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1.5x scale

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.