Home / 838,289.80-1,257,434.70-667,047.70

Finding the Fourth Proportional to 838,289.80, 1,257,434.70 and 667,047.70

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Solution

The fourth proportional to 838,289.80, 1,257,434.70 and 667,047.70 is: 1,000,571.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,289.80 : 1,257,434.70 = 667,047.70 : x
  2. Step 2: Convert to fraction form
    838,289.80/1,257,434.70 = 667,047.70/x
  3. Step 3: Cross multiply
    838,289.80x = 1,257,434.70 × 667,047.70
  4. Step 4: Simplify right side
    838,289.80x = 838,768,924,535.19
  5. Step 5: Solve for x
    x = 838,768,924,535.19/838,289.80
  6. Step 6: Final answer
    x = 1,000,571.55

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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.