Home / 725,195.72-1,000,711.42-419,291.74

Finding the Fourth Proportional to 725,195.72, 1,000,711.42 and 419,291.74

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Solution

The fourth proportional to 725,195.72, 1,000,711.42 and 419,291.74 is: 578,588.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,195.72 : 1,000,711.42 = 419,291.74 : x
  2. Step 2: Convert to fraction form
    725,195.72/1,000,711.42 = 419,291.74/x
  3. Step 3: Cross multiply
    725,195.72x = 1,000,711.42 × 419,291.74
  4. Step 4: Simplify right side
    725,195.72x = 419,590,032,529.67
  5. Step 5: Solve for x
    x = 419,590,032,529.67/725,195.72
  6. Step 6: Final answer
    x = 578,588.68

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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.