Home / 1,397,129.40-2,095,694.10-386,249.40

Finding the Fourth Proportional to 1,397,129.40, 2,095,694.10 and 386,249.40

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Solution

The fourth proportional to 1,397,129.40, 2,095,694.10 and 386,249.40 is: 579,374.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,129.40 : 2,095,694.10 = 386,249.40 : x
  2. Step 2: Convert to fraction form
    1,397,129.40/2,095,694.10 = 386,249.40/x
  3. Step 3: Cross multiply
    1,397,129.40x = 2,095,694.10 × 386,249.40
  4. Step 4: Simplify right side
    1,397,129.40x = 809,460,588,708.54
  5. Step 5: Solve for x
    x = 809,460,588,708.54/1,397,129.40
  6. Step 6: Final answer
    x = 579,374.10

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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.