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Finding the Fourth Proportional to 892,278.71, 1,231,336 and 484,371.80

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Solution

The fourth proportional to 892,278.71, 1,231,336 and 484,371.80 is: 668,428.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,278.71 : 1,231,336 = 484,371.80 : x
  2. Step 2: Convert to fraction form
    892,278.71/1,231,336 = 484,371.80/x
  3. Step 3: Cross multiply
    892,278.71x = 1,231,336 × 484,371.80
  4. Step 4: Simplify right side
    892,278.71x = 596,424,434,724.80
  5. Step 5: Solve for x
    x = 596,424,434,724.80/892,278.71
  6. Step 6: Final answer
    x = 668,428.40

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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.