Home / 754,123.19-1,040,696.76-409,959.78

Finding the Fourth Proportional to 754,123.19, 1,040,696.76 and 409,959.78

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Solution

The fourth proportional to 754,123.19, 1,040,696.76 and 409,959.78 is: 565,748.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,123.19 : 1,040,696.76 = 409,959.78 : x
  2. Step 2: Convert to fraction form
    754,123.19/1,040,696.76 = 409,959.78/x
  3. Step 3: Cross multiply
    754,123.19x = 1,040,696.76 × 409,959.78
  4. Step 4: Simplify right side
    754,123.19x = 426,643,814,776.31
  5. Step 5: Solve for x
    x = 426,643,814,776.31/754,123.19
  6. Step 6: Final answer
    x = 565,748.17

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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.