Home / 782,643.90-1,173,811.86-250,021.38

Finding the Fourth Proportional to 782,643.90, 1,173,811.86 and 250,021.38

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Solution

The fourth proportional to 782,643.90, 1,173,811.86 and 250,021.38 is: 374,982.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,643.90 : 1,173,811.86 = 250,021.38 : x
  2. Step 2: Convert to fraction form
    782,643.90/1,173,811.86 = 250,021.38/x
  3. Step 3: Cross multiply
    782,643.90x = 1,173,811.86 × 250,021.38
  4. Step 4: Simplify right side
    782,643.90x = 293,478,061,097.57
  5. Step 5: Solve for x
    x = 293,478,061,097.57/782,643.90
  6. Step 6: Final answer
    x = 374,982.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.