Home / 578,512.10-867,768.15-329,680.10

Finding the Fourth Proportional to 578,512.10, 867,768.15 and 329,680.10

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Solution

The fourth proportional to 578,512.10, 867,768.15 and 329,680.10 is: 494,520.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,512.10 : 867,768.15 = 329,680.10 : x
  2. Step 2: Convert to fraction form
    578,512.10/867,768.15 = 329,680.10/x
  3. Step 3: Cross multiply
    578,512.10x = 867,768.15 × 329,680.10
  4. Step 4: Simplify right side
    578,512.10x = 286,085,890,468.82
  5. Step 5: Solve for x
    x = 286,085,890,468.82/578,512.10
  6. Step 6: Final answer
    x = 494,520.15

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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.