Home / 726,816.50-1,090,138.88-194,378.79

Finding the Fourth Proportional to 726,816.50, 1,090,138.88 and 194,378.79

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Solution

The fourth proportional to 726,816.50, 1,090,138.88 and 194,378.79 is: 291,545.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,816.50 : 1,090,138.88 = 194,378.79 : x
  2. Step 2: Convert to fraction form
    726,816.50/1,090,138.88 = 194,378.79/x
  3. Step 3: Cross multiply
    726,816.50x = 1,090,138.88 × 194,378.79
  4. Step 4: Simplify right side
    726,816.50x = 211,899,876,426.36
  5. Step 5: Solve for x
    x = 211,899,876,426.36/726,816.50
  6. Step 6: Final answer
    x = 291,545.22

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1.5x scale

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.