Home / 857,375.39-1,183,275.47-494,896.55

Finding the Fourth Proportional to 857,375.39, 1,183,275.47 and 494,896.55

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Solution

The fourth proportional to 857,375.39, 1,183,275.47 and 494,896.55 is: 683,013.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,375.39 : 1,183,275.47 = 494,896.55 : x
  2. Step 2: Convert to fraction form
    857,375.39/1,183,275.47 = 494,896.55/x
  3. Step 3: Cross multiply
    857,375.39x = 1,183,275.47 × 494,896.55
  4. Step 4: Simplify right side
    857,375.39x = 585,598,943,123.49
  5. Step 5: Solve for x
    x = 585,598,943,123.49/857,375.39
  6. Step 6: Final answer
    x = 683,013.47

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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.