Home / 485,813.28-670,392.04-268,024.76

Finding the Fourth Proportional to 485,813.28, 670,392.04 and 268,024.76

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Solution

The fourth proportional to 485,813.28, 670,392.04 and 268,024.76 is: 369,857.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,813.28 : 670,392.04 = 268,024.76 : x
  2. Step 2: Convert to fraction form
    485,813.28/670,392.04 = 268,024.76/x
  3. Step 3: Cross multiply
    485,813.28x = 670,392.04 × 268,024.76
  4. Step 4: Simplify right side
    485,813.28x = 179,681,665,626.91
  5. Step 5: Solve for x
    x = 179,681,665,626.91/485,813.28
  6. Step 6: Final answer
    x = 369,857.46

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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.