Home / 879,123.90-1,318,685.85-826,635.90

Finding the Fourth Proportional to 879,123.90, 1,318,685.85 and 826,635.90

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Solution

The fourth proportional to 879,123.90, 1,318,685.85 and 826,635.90 is: 1,239,953.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,123.90 : 1,318,685.85 = 826,635.90 : x
  2. Step 2: Convert to fraction form
    879,123.90/1,318,685.85 = 826,635.90/x
  3. Step 3: Cross multiply
    879,123.90x = 1,318,685.85 × 826,635.90
  4. Step 4: Simplify right side
    879,123.90x = 1,090,073,064,432.02
  5. Step 5: Solve for x
    x = 1,090,073,064,432.02/879,123.90
  6. Step 6: Final answer
    x = 1,239,953.85

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Similar ratio
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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.