Home / 1,168,931.10-1,753,396.65-420,879.90

Finding the Fourth Proportional to 1,168,931.10, 1,753,396.65 and 420,879.90

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Solution

The fourth proportional to 1,168,931.10, 1,753,396.65 and 420,879.90 is: 631,319.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,931.10 : 1,753,396.65 = 420,879.90 : x
  2. Step 2: Convert to fraction form
    1,168,931.10/1,753,396.65 = 420,879.90/x
  3. Step 3: Cross multiply
    1,168,931.10x = 1,753,396.65 × 420,879.90
  4. Step 4: Simplify right side
    1,168,931.10x = 737,969,406,712.34
  5. Step 5: Solve for x
    x = 737,969,406,712.34/1,168,931.10
  6. Step 6: Final answer
    x = 631,319.85

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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.