Home / 693,713.47-957,479.03-421,723.75

Finding the Fourth Proportional to 693,713.47, 957,479.03 and 421,723.75

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Solution

The fourth proportional to 693,713.47, 957,479.03 and 421,723.75 is: 582,072.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,713.47 : 957,479.03 = 421,723.75 : x
  2. Step 2: Convert to fraction form
    693,713.47/957,479.03 = 421,723.75/x
  3. Step 3: Cross multiply
    693,713.47x = 957,479.03 × 421,723.75
  4. Step 4: Simplify right side
    693,713.47x = 403,791,647,077.96
  5. Step 5: Solve for x
    x = 403,791,647,077.96/693,713.47
  6. Step 6: Final answer
    x = 582,072.66

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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.