Home / 920,082.30-1,380,178.56-288,996.09

Finding the Fourth Proportional to 920,082.30, 1,380,178.56 and 288,996.09

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Solution

The fourth proportional to 920,082.30, 1,380,178.56 and 288,996.09 is: 433,511.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,082.30 : 1,380,178.56 = 288,996.09 : x
  2. Step 2: Convert to fraction form
    920,082.30/1,380,178.56 = 288,996.09/x
  3. Step 3: Cross multiply
    920,082.30x = 1,380,178.56 × 288,996.09
  4. Step 4: Simplify right side
    920,082.30x = 398,866,207,341.83
  5. Step 5: Solve for x
    x = 398,866,207,341.83/920,082.30
  6. Step 6: Final answer
    x = 433,511.44

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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.