Home / 925,155.36-1,387,937.16-393,131.16

Finding the Fourth Proportional to 925,155.36, 1,387,937.16 and 393,131.16

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Solution

The fourth proportional to 925,155.36, 1,387,937.16 and 393,131.16 is: 589,783.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,155.36 : 1,387,937.16 = 393,131.16 : x
  2. Step 2: Convert to fraction form
    925,155.36/1,387,937.16 = 393,131.16/x
  3. Step 3: Cross multiply
    925,155.36x = 1,387,937.16 × 393,131.16
  4. Step 4: Simplify right side
    925,155.36x = 545,641,345,717.91
  5. Step 5: Solve for x
    x = 545,641,345,717.91/925,155.36
  6. Step 6: Final answer
    x = 589,783.48

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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.