Home / 1,051,217.62-1,577,235.49-420,311.86

Finding the Fourth Proportional to 1,051,217.62, 1,577,235.49 and 420,311.86

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Solution

The fourth proportional to 1,051,217.62, 1,577,235.49 and 420,311.86 is: 630,631.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,217.62 : 1,577,235.49 = 420,311.86 : x
  2. Step 2: Convert to fraction form
    1,051,217.62/1,577,235.49 = 420,311.86/x
  3. Step 3: Cross multiply
    1,051,217.62x = 1,577,235.49 × 420,311.86
  4. Step 4: Simplify right side
    1,051,217.62x = 662,930,777,466.04
  5. Step 5: Solve for x
    x = 662,930,777,466.04/1,051,217.62
  6. Step 6: Final answer
    x = 630,631.34

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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.