Home / 578,643.20-867,331.20-204,473.60

Finding the Fourth Proportional to 578,643.20, 867,331.20 and 204,473.60

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Solution

The fourth proportional to 578,643.20, 867,331.20 and 204,473.60 is: 306,486.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,643.20 : 867,331.20 = 204,473.60 : x
  2. Step 2: Convert to fraction form
    578,643.20/867,331.20 = 204,473.60/x
  3. Step 3: Cross multiply
    578,643.20x = 867,331.20 × 204,473.60
  4. Step 4: Simplify right side
    578,643.20x = 177,346,332,856.32
  5. Step 5: Solve for x
    x = 177,346,332,856.32/578,643.20
  6. Step 6: Final answer
    x = 306,486.51

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Half scale
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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.