Home / 726,195.33-1,002,079.35-420,210.72

Finding the Fourth Proportional to 726,195.33, 1,002,079.35 and 420,210.72

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Solution

The fourth proportional to 726,195.33, 1,002,079.35 and 420,210.72 is: 579,850.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,195.33 : 1,002,079.35 = 420,210.72 : x
  2. Step 2: Convert to fraction form
    726,195.33/1,002,079.35 = 420,210.72/x
  3. Step 3: Cross multiply
    726,195.33x = 1,002,079.35 × 420,210.72
  4. Step 4: Simplify right side
    726,195.33x = 421,084,485,160.63
  5. Step 5: Solve for x
    x = 421,084,485,160.63/726,195.33
  6. Step 6: Final answer
    x = 579,850.17

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.