Home / 692,132.10-1,038,198.15-271,421.70

Finding the Fourth Proportional to 692,132.10, 1,038,198.15 and 271,421.70

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Solution

The fourth proportional to 692,132.10, 1,038,198.15 and 271,421.70 is: 407,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,132.10 : 1,038,198.15 = 271,421.70 : x
  2. Step 2: Convert to fraction form
    692,132.10/1,038,198.15 = 271,421.70/x
  3. Step 3: Cross multiply
    692,132.10x = 1,038,198.15 × 271,421.70
  4. Step 4: Simplify right side
    692,132.10x = 281,789,506,809.86
  5. Step 5: Solve for x
    x = 281,789,506,809.86/692,132.10
  6. Step 6: Final answer
    x = 407,132.55

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Double scale
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Similar ratio
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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.