Home / 1,200,471.40-1,656,703.60-691,337.80

Finding the Fourth Proportional to 1,200,471.40, 1,656,703.60 and 691,337.80

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Solution

The fourth proportional to 1,200,471.40, 1,656,703.60 and 691,337.80 is: 954,076.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,471.40 : 1,656,703.60 = 691,337.80 : x
  2. Step 2: Convert to fraction form
    1,200,471.40/1,656,703.60 = 691,337.80/x
  3. Step 3: Cross multiply
    1,200,471.40x = 1,656,703.60 × 691,337.80
  4. Step 4: Simplify right side
    1,200,471.40x = 1,145,341,822,076.08
  5. Step 5: Solve for x
    x = 1,145,341,822,076.08/1,200,471.40
  6. Step 6: Final answer
    x = 954,076.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.