Home / 726,191.08-1,002,073.48-420,206.43

Finding the Fourth Proportional to 726,191.08, 1,002,073.48 and 420,206.43

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Solution

The fourth proportional to 726,191.08, 1,002,073.48 and 420,206.43 is: 579,844.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,191.08 : 1,002,073.48 = 420,206.43 : x
  2. Step 2: Convert to fraction form
    726,191.08/1,002,073.48 = 420,206.43/x
  3. Step 3: Cross multiply
    726,191.08x = 1,002,073.48 × 420,206.43
  4. Step 4: Simplify right side
    726,191.08x = 421,077,719,628.48
  5. Step 5: Solve for x
    x = 421,077,719,628.48/726,191.08
  6. Step 6: Final answer
    x = 579,844.25

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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.