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Finding the Fourth Proportional to 578,601.60, 867,902.40 and 329,769.60

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Solution

The fourth proportional to 578,601.60, 867,902.40 and 329,769.60 is: 494,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,601.60 : 867,902.40 = 329,769.60 : x
  2. Step 2: Convert to fraction form
    578,601.60/867,902.40 = 329,769.60/x
  3. Step 3: Cross multiply
    578,601.60x = 867,902.40 × 329,769.60
  4. Step 4: Simplify right side
    578,601.60x = 286,207,827,287.04
  5. Step 5: Solve for x
    x = 286,207,827,287.04/578,601.60
  6. Step 6: Final answer
    x = 494,654.40

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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.