Home / 757,679.28-1,045,592.58-418,147.56

Finding the Fourth Proportional to 757,679.28, 1,045,592.58 and 418,147.56

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Solution

The fourth proportional to 757,679.28, 1,045,592.58 and 418,147.56 is: 577,040.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,679.28 : 1,045,592.58 = 418,147.56 : x
  2. Step 2: Convert to fraction form
    757,679.28/1,045,592.58 = 418,147.56/x
  3. Step 3: Cross multiply
    757,679.28x = 1,045,592.58 × 418,147.56
  4. Step 4: Simplify right side
    757,679.28x = 437,211,986,081.11
  5. Step 5: Solve for x
    x = 437,211,986,081.11/757,679.28
  6. Step 6: Final answer
    x = 577,040.97

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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.