Home / 725,190.23-1,000,703.83-419,286.23

Finding the Fourth Proportional to 725,190.23, 1,000,703.83 and 419,286.23

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Solution

The fourth proportional to 725,190.23, 1,000,703.83 and 419,286.23 is: 578,581.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,190.23 : 1,000,703.83 = 419,286.23 : x
  2. Step 2: Convert to fraction form
    725,190.23/1,000,703.83 = 419,286.23/x
  3. Step 3: Cross multiply
    725,190.23x = 1,000,703.83 × 419,286.23
  4. Step 4: Simplify right side
    725,190.23x = 419,581,334,130.83
  5. Step 5: Solve for x
    x = 419,581,334,130.83/725,190.23
  6. Step 6: Final answer
    x = 578,581.07

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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.