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Finding the Fourth Proportional to 580,152.20, 870,228.30 and 330,859.40

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Solution

The fourth proportional to 580,152.20, 870,228.30 and 330,859.40 is: 496,289.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,152.20 : 870,228.30 = 330,859.40 : x
  2. Step 2: Convert to fraction form
    580,152.20/870,228.30 = 330,859.40/x
  3. Step 3: Cross multiply
    580,152.20x = 870,228.30 × 330,859.40
  4. Step 4: Simplify right side
    580,152.20x = 287,923,213,201.02
  5. Step 5: Solve for x
    x = 287,923,213,201.02/580,152.20
  6. Step 6: Final answer
    x = 496,289.10

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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.