Home / 880,414.80-1,320,622.20-319,376.40

Finding the Fourth Proportional to 880,414.80, 1,320,622.20 and 319,376.40

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Solution

The fourth proportional to 880,414.80, 1,320,622.20 and 319,376.40 is: 479,064.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,414.80 : 1,320,622.20 = 319,376.40 : x
  2. Step 2: Convert to fraction form
    880,414.80/1,320,622.20 = 319,376.40/x
  3. Step 3: Cross multiply
    880,414.80x = 1,320,622.20 × 319,376.40
  4. Step 4: Simplify right side
    880,414.80x = 421,775,563,996.08
  5. Step 5: Solve for x
    x = 421,775,563,996.08/880,414.80
  6. Step 6: Final answer
    x = 479,064.60

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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.