Home / 1,072,960.20-1,609,440.30-408,025.80

Finding the Fourth Proportional to 1,072,960.20, 1,609,440.30 and 408,025.80

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Solution

The fourth proportional to 1,072,960.20, 1,609,440.30 and 408,025.80 is: 612,038.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,960.20 : 1,609,440.30 = 408,025.80 : x
  2. Step 2: Convert to fraction form
    1,072,960.20/1,609,440.30 = 408,025.80/x
  3. Step 3: Cross multiply
    1,072,960.20x = 1,609,440.30 × 408,025.80
  4. Step 4: Simplify right side
    1,072,960.20x = 656,693,165,959.74
  5. Step 5: Solve for x
    x = 656,693,165,959.74/1,072,960.20
  6. Step 6: Final answer
    x = 612,038.70

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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.