Home / 1,129,964.52-1,694,946.80-420,171.24

Finding the Fourth Proportional to 1,129,964.52, 1,694,946.80 and 420,171.24

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Solution

The fourth proportional to 1,129,964.52, 1,694,946.80 and 420,171.24 is: 630,256.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,964.52 : 1,694,946.80 = 420,171.24 : x
  2. Step 2: Convert to fraction form
    1,129,964.52/1,694,946.80 = 420,171.24/x
  3. Step 3: Cross multiply
    1,129,964.52x = 1,694,946.80 × 420,171.24
  4. Step 4: Simplify right side
    1,129,964.52x = 712,167,898,690.03
  5. Step 5: Solve for x
    x = 712,167,898,690.03/1,129,964.52
  6. Step 6: Final answer
    x = 630,256.87

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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.