Home / 1,432,082.46-2,147,821.20-420,929.40

Finding the Fourth Proportional to 1,432,082.46, 2,147,821.20 and 420,929.40

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Solution

The fourth proportional to 1,432,082.46, 2,147,821.20 and 420,929.40 is: 631,305.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,082.46 : 2,147,821.20 = 420,929.40 : x
  2. Step 2: Convert to fraction form
    1,432,082.46/2,147,821.20 = 420,929.40/x
  3. Step 3: Cross multiply
    1,432,082.46x = 2,147,821.20 × 420,929.40
  4. Step 4: Simplify right side
    1,432,082.46x = 904,081,089,023.28
  5. Step 5: Solve for x
    x = 904,081,089,023.28/1,432,082.46
  6. Step 6: Final answer
    x = 631,305.19

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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.