Home / 692,520.54-1,038,728.91-243,245.34

Finding the Fourth Proportional to 692,520.54, 1,038,728.91 and 243,245.34

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Solution

The fourth proportional to 692,520.54, 1,038,728.91 and 243,245.34 is: 364,849.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,520.54 : 1,038,728.91 = 243,245.34 : x
  2. Step 2: Convert to fraction form
    692,520.54/1,038,728.91 = 243,245.34/x
  3. Step 3: Cross multiply
    692,520.54x = 1,038,728.91 × 243,245.34
  4. Step 4: Simplify right side
    692,520.54x = 252,665,966,880.78
  5. Step 5: Solve for x
    x = 252,665,966,880.78/692,520.54
  6. Step 6: Final answer
    x = 364,849.78

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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.