Home / 754,340.12-1,124,403.90-693,805.78

Finding the Fourth Proportional to 754,340.12, 1,124,403.90 and 693,805.78

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Solution

The fourth proportional to 754,340.12, 1,124,403.90 and 693,805.78 is: 1,034,172.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,340.12 : 1,124,403.90 = 693,805.78 : x
  2. Step 2: Convert to fraction form
    754,340.12/1,124,403.90 = 693,805.78/x
  3. Step 3: Cross multiply
    754,340.12x = 1,124,403.90 × 693,805.78
  4. Step 4: Simplify right side
    754,340.12x = 780,117,926,369.88
  5. Step 5: Solve for x
    x = 780,117,926,369.88/754,340.12
  6. Step 6: Final answer
    x = 1,034,172.66

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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.