Home / 1,000,354.12-1,380,620.10-570,535.72

Finding the Fourth Proportional to 1,000,354.12, 1,380,620.10 and 570,535.72

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Solution

The fourth proportional to 1,000,354.12, 1,380,620.10 and 570,535.72 is: 787,414.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,354.12 : 1,380,620.10 = 570,535.72 : x
  2. Step 2: Convert to fraction form
    1,000,354.12/1,380,620.10 = 570,535.72/x
  3. Step 3: Cross multiply
    1,000,354.12x = 1,380,620.10 × 570,535.72
  4. Step 4: Simplify right side
    1,000,354.12x = 787,693,082,799.97
  5. Step 5: Solve for x
    x = 787,693,082,799.97/1,000,354.12
  6. Step 6: Final answer
    x = 787,414.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.