Home / 781,348.50-1,171,246.80-443,690.28

Finding the Fourth Proportional to 781,348.50, 1,171,246.80 and 443,690.28

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Solution

The fourth proportional to 781,348.50, 1,171,246.80 and 443,690.28 is: 665,094.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,348.50 : 1,171,246.80 = 443,690.28 : x
  2. Step 2: Convert to fraction form
    781,348.50/1,171,246.80 = 443,690.28/x
  3. Step 3: Cross multiply
    781,348.50x = 1,171,246.80 × 443,690.28
  4. Step 4: Simplify right side
    781,348.50x = 519,670,820,641.10
  5. Step 5: Solve for x
    x = 519,670,820,641.10/781,348.50
  6. Step 6: Final answer
    x = 665,094.80

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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.