Home / 731,902.71-1,010,131.81-421,744.96

Finding the Fourth Proportional to 731,902.71, 1,010,131.81 and 421,744.96

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Solution

The fourth proportional to 731,902.71, 1,010,131.81 and 421,744.96 is: 582,069.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,902.71 : 1,010,131.81 = 421,744.96 : x
  2. Step 2: Convert to fraction form
    731,902.71/1,010,131.81 = 421,744.96/x
  3. Step 3: Cross multiply
    731,902.71x = 1,010,131.81 × 421,744.96
  4. Step 4: Simplify right side
    731,902.71x = 426,018,000,011.48
  5. Step 5: Solve for x
    x = 426,018,000,011.48/731,902.71
  6. Step 6: Final answer
    x = 582,069.16

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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.