Home / 578,541.60-867,812.40-329,709.60

Finding the Fourth Proportional to 578,541.60, 867,812.40 and 329,709.60

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Solution

The fourth proportional to 578,541.60, 867,812.40 and 329,709.60 is: 494,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,541.60 : 867,812.40 = 329,709.60 : x
  2. Step 2: Convert to fraction form
    578,541.60/867,812.40 = 329,709.60/x
  3. Step 3: Cross multiply
    578,541.60x = 867,812.40 × 329,709.60
  4. Step 4: Simplify right side
    578,541.60x = 286,126,079,279.04
  5. Step 5: Solve for x
    x = 286,126,079,279.04/578,541.60
  6. Step 6: Final answer
    x = 494,564.40

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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.