Home / 578,003.20-867,004.80-459,030.40

Finding the Fourth Proportional to 578,003.20, 867,004.80 and 459,030.40

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Solution

The fourth proportional to 578,003.20, 867,004.80 and 459,030.40 is: 688,545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,003.20 : 867,004.80 = 459,030.40 : x
  2. Step 2: Convert to fraction form
    578,003.20/867,004.80 = 459,030.40/x
  3. Step 3: Cross multiply
    578,003.20x = 867,004.80 × 459,030.40
  4. Step 4: Simplify right side
    578,003.20x = 397,981,560,145.92
  5. Step 5: Solve for x
    x = 397,981,560,145.92/578,003.20
  6. Step 6: Final answer
    x = 688,545.60

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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.