Home / 626,934.60-939,919.68-311,146.56

Finding the Fourth Proportional to 626,934.60, 939,919.68 and 311,146.56

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Solution

The fourth proportional to 626,934.60, 939,919.68 and 311,146.56 is: 466,480.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,934.60 : 939,919.68 = 311,146.56 : x
  2. Step 2: Convert to fraction form
    626,934.60/939,919.68 = 311,146.56/x
  3. Step 3: Cross multiply
    626,934.60x = 939,919.68 × 311,146.56
  4. Step 4: Simplify right side
    626,934.60x = 292,452,775,108.30
  5. Step 5: Solve for x
    x = 292,452,775,108.30/626,934.60
  6. Step 6: Final answer
    x = 466,480.52

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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.