Home / 821,141.76-1,230,778.88-347,531.52

Finding the Fourth Proportional to 821,141.76, 1,230,778.88 and 347,531.52

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Solution

The fourth proportional to 821,141.76, 1,230,778.88 and 347,531.52 is: 520,902.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,141.76 : 1,230,778.88 = 347,531.52 : x
  2. Step 2: Convert to fraction form
    821,141.76/1,230,778.88 = 347,531.52/x
  3. Step 3: Cross multiply
    821,141.76x = 1,230,778.88 × 347,531.52
  4. Step 4: Simplify right side
    821,141.76x = 427,734,454,950.30
  5. Step 5: Solve for x
    x = 427,734,454,950.30/821,141.76
  6. Step 6: Final answer
    x = 520,902.09

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1.5x scale

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.