Home / 1,138,226.20-1,707,425.70-339,445.40

Finding the Fourth Proportional to 1,138,226.20, 1,707,425.70 and 339,445.40

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Solution

The fourth proportional to 1,138,226.20, 1,707,425.70 and 339,445.40 is: 509,193.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,226.20 : 1,707,425.70 = 339,445.40 : x
  2. Step 2: Convert to fraction form
    1,138,226.20/1,707,425.70 = 339,445.40/x
  3. Step 3: Cross multiply
    1,138,226.20x = 1,707,425.70 × 339,445.40
  4. Step 4: Simplify right side
    1,138,226.20x = 579,577,799,706.78
  5. Step 5: Solve for x
    x = 579,577,799,706.78/1,138,226.20
  6. Step 6: Final answer
    x = 509,193.87

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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.