Home / 753,687.41-1,129,895.49-326,901.78

Finding the Fourth Proportional to 753,687.41, 1,129,895.49 and 326,901.78

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Solution

The fourth proportional to 753,687.41, 1,129,895.49 and 326,901.78 is: 490,076.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,687.41 : 1,129,895.49 = 326,901.78 : x
  2. Step 2: Convert to fraction form
    753,687.41/1,129,895.49 = 326,901.78/x
  3. Step 3: Cross multiply
    753,687.41x = 1,129,895.49 × 326,901.78
  4. Step 4: Simplify right side
    753,687.41x = 369,364,846,894.97
  5. Step 5: Solve for x
    x = 369,364,846,894.97/753,687.41
  6. Step 6: Final answer
    x = 490,076.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.