Home / 1,366,986.60-2,050,479.90-420,234.30

Finding the Fourth Proportional to 1,366,986.60, 2,050,479.90 and 420,234.30

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Solution

The fourth proportional to 1,366,986.60, 2,050,479.90 and 420,234.30 is: 630,351.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,366,986.60 : 2,050,479.90 = 420,234.30 : x
  2. Step 2: Convert to fraction form
    1,366,986.60/2,050,479.90 = 420,234.30/x
  3. Step 3: Cross multiply
    1,366,986.60x = 2,050,479.90 × 420,234.30
  4. Step 4: Simplify right side
    1,366,986.60x = 861,681,985,440.57
  5. Step 5: Solve for x
    x = 861,681,985,440.57/1,366,986.60
  6. Step 6: Final answer
    x = 630,351.45

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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.