Home / 1,397,131.40-2,095,697.10-386,251.40

Finding the Fourth Proportional to 1,397,131.40, 2,095,697.10 and 386,251.40

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Solution

The fourth proportional to 1,397,131.40, 2,095,697.10 and 386,251.40 is: 579,377.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,131.40 : 2,095,697.10 = 386,251.40 : x
  2. Step 2: Convert to fraction form
    1,397,131.40/2,095,697.10 = 386,251.40/x
  3. Step 3: Cross multiply
    1,397,131.40x = 2,095,697.10 × 386,251.40
  4. Step 4: Simplify right side
    1,397,131.40x = 809,465,938,850.94
  5. Step 5: Solve for x
    x = 809,465,938,850.94/1,397,131.40
  6. Step 6: Final answer
    x = 579,377.10

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Double scale
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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.