Home / 725,008.25-1,000,510.89-402,748.34

Finding the Fourth Proportional to 725,008.25, 1,000,510.89 and 402,748.34

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Solution

The fourth proportional to 725,008.25, 1,000,510.89 and 402,748.34 is: 555,792.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,008.25 : 1,000,510.89 = 402,748.34 : x
  2. Step 2: Convert to fraction form
    725,008.25/1,000,510.89 = 402,748.34/x
  3. Step 3: Cross multiply
    725,008.25x = 1,000,510.89 × 402,748.34
  4. Step 4: Simplify right side
    725,008.25x = 402,954,093,586.56
  5. Step 5: Solve for x
    x = 402,954,093,586.56/725,008.25
  6. Step 6: Final answer
    x = 555,792.42

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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.