Home / 910,423.20-1,365,634.80-319,447.20

Finding the Fourth Proportional to 910,423.20, 1,365,634.80 and 319,447.20

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Solution

The fourth proportional to 910,423.20, 1,365,634.80 and 319,447.20 is: 479,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,423.20 : 1,365,634.80 = 319,447.20 : x
  2. Step 2: Convert to fraction form
    910,423.20/1,365,634.80 = 319,447.20/x
  3. Step 3: Cross multiply
    910,423.20x = 1,365,634.80 × 319,447.20
  4. Step 4: Simplify right side
    910,423.20x = 436,248,213,082.56
  5. Step 5: Solve for x
    x = 436,248,213,082.56/910,423.20
  6. Step 6: Final answer
    x = 479,170.80

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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.