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Finding the Fourth Proportional to 682,641.60, 1,022,484.80 and 495,240

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Solution

The fourth proportional to 682,641.60, 1,022,484.80 and 495,240 is: 741,788.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,641.60 : 1,022,484.80 = 495,240 : x
  2. Step 2: Convert to fraction form
    682,641.60/1,022,484.80 = 495,240/x
  3. Step 3: Cross multiply
    682,641.60x = 1,022,484.80 × 495,240
  4. Step 4: Simplify right side
    682,641.60x = 506,375,372,352
  5. Step 5: Solve for x
    x = 506,375,372,352/682,641.60
  6. Step 6: Final answer
    x = 741,788.04

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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.