Home / 725,351.79-1,001,113.05-419,379.57

Finding the Fourth Proportional to 725,351.79, 1,001,113.05 and 419,379.57

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Solution

The fourth proportional to 725,351.79, 1,001,113.05 and 419,379.57 is: 578,817.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,351.79 : 1,001,113.05 = 419,379.57 : x
  2. Step 2: Convert to fraction form
    725,351.79/1,001,113.05 = 419,379.57/x
  3. Step 3: Cross multiply
    725,351.79x = 1,001,113.05 × 419,379.57
  4. Step 4: Simplify right side
    725,351.79x = 419,846,360,430.39
  5. Step 5: Solve for x
    x = 419,846,360,430.39/725,351.79
  6. Step 6: Final answer
    x = 578,817.57

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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.