Home / 766,916.80-1,058,336.58-418,049.56

Finding the Fourth Proportional to 766,916.80, 1,058,336.58 and 418,049.56

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Solution

The fourth proportional to 766,916.80, 1,058,336.58 and 418,049.56 is: 576,903.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,916.80 : 1,058,336.58 = 418,049.56 : x
  2. Step 2: Convert to fraction form
    766,916.80/1,058,336.58 = 418,049.56/x
  3. Step 3: Cross multiply
    766,916.80x = 1,058,336.58 × 418,049.56
  4. Step 4: Simplify right side
    766,916.80x = 442,437,141,600.91
  5. Step 5: Solve for x
    x = 442,437,141,600.91/766,916.80
  6. Step 6: Final answer
    x = 576,903.70

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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.