Home / 853,869.60-1,178,323.20-471,912.48

Finding the Fourth Proportional to 853,869.60, 1,178,323.20 and 471,912.48

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Solution

The fourth proportional to 853,869.60, 1,178,323.20 and 471,912.48 is: 651,229.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,869.60 : 1,178,323.20 = 471,912.48 : x
  2. Step 2: Convert to fraction form
    853,869.60/1,178,323.20 = 471,912.48/x
  3. Step 3: Cross multiply
    853,869.60x = 1,178,323.20 × 471,912.48
  4. Step 4: Simplify right side
    853,869.60x = 556,065,423,553.54
  5. Step 5: Solve for x
    x = 556,065,423,553.54/853,869.60
  6. Step 6: Final answer
    x = 651,229.91

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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.