Home / 450,519.80-621,787.12-256,927.92

Finding the Fourth Proportional to 450,519.80, 621,787.12 and 256,927.92

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Solution

The fourth proportional to 450,519.80, 621,787.12 and 256,927.92 is: 354,600.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,519.80 : 621,787.12 = 256,927.92 : x
  2. Step 2: Convert to fraction form
    450,519.80/621,787.12 = 256,927.92/x
  3. Step 3: Cross multiply
    450,519.80x = 621,787.12 × 256,927.92
  4. Step 4: Simplify right side
    450,519.80x = 159,754,471,424.39
  5. Step 5: Solve for x
    x = 159,754,471,424.39/450,519.80
  6. Step 6: Final answer
    x = 354,600.33

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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.