Home / 773,611.38-1,155,122.69-693,129.78

Finding the Fourth Proportional to 773,611.38, 1,155,122.69 and 693,129.78

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Solution

The fourth proportional to 773,611.38, 1,155,122.69 and 693,129.78 is: 1,034,951.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,611.38 : 1,155,122.69 = 693,129.78 : x
  2. Step 2: Convert to fraction form
    773,611.38/1,155,122.69 = 693,129.78/x
  3. Step 3: Cross multiply
    773,611.38x = 1,155,122.69 × 693,129.78
  4. Step 4: Simplify right side
    773,611.38x = 800,649,932,527.06
  5. Step 5: Solve for x
    x = 800,649,932,527.06/773,611.38
  6. Step 6: Final answer
    x = 1,034,951.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.