Home / 1,072,938.20-1,609,407.30-408,003.80

Finding the Fourth Proportional to 1,072,938.20, 1,609,407.30 and 408,003.80

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Solution

The fourth proportional to 1,072,938.20, 1,609,407.30 and 408,003.80 is: 612,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,938.20 : 1,609,407.30 = 408,003.80 : x
  2. Step 2: Convert to fraction form
    1,072,938.20/1,609,407.30 = 408,003.80/x
  3. Step 3: Cross multiply
    1,072,938.20x = 1,609,407.30 × 408,003.80
  4. Step 4: Simplify right side
    1,072,938.20x = 656,644,294,147.74
  5. Step 5: Solve for x
    x = 656,644,294,147.74/1,072,938.20
  6. Step 6: Final answer
    x = 612,005.70

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Double scale
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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.