Home / 838,885.80-1,255,704.30-660,426.60

Finding the Fourth Proportional to 838,885.80, 1,255,704.30 and 660,426.60

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Solution

The fourth proportional to 838,885.80, 1,255,704.30 and 660,426.60 is: 988,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,885.80 : 1,255,704.30 = 660,426.60 : x
  2. Step 2: Convert to fraction form
    838,885.80/1,255,704.30 = 660,426.60/x
  3. Step 3: Cross multiply
    838,885.80x = 1,255,704.30 × 660,426.60
  4. Step 4: Simplify right side
    838,885.80x = 829,300,521,454.38
  5. Step 5: Solve for x
    x = 829,300,521,454.38/838,885.80
  6. Step 6: Final answer
    x = 988,573.80

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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.