Home / 725,353.57-1,001,079.98-438,876.01

Finding the Fourth Proportional to 725,353.57, 1,001,079.98 and 438,876.01

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Solution

The fourth proportional to 725,353.57, 1,001,079.98 and 438,876.01 is: 605,704.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,353.57 : 1,001,079.98 = 438,876.01 : x
  2. Step 2: Convert to fraction form
    725,353.57/1,001,079.98 = 438,876.01/x
  3. Step 3: Cross multiply
    725,353.57x = 1,001,079.98 × 438,876.01
  4. Step 4: Simplify right side
    725,353.57x = 439,349,987,313.28
  5. Step 5: Solve for x
    x = 439,349,987,313.28/725,353.57
  6. Step 6: Final answer
    x = 605,704.59

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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.