Home / 1,418,658.60-2,127,987.90-672,162.60

Finding the Fourth Proportional to 1,418,658.60, 2,127,987.90 and 672,162.60

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Solution

The fourth proportional to 1,418,658.60, 2,127,987.90 and 672,162.60 is: 1,008,243.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,658.60 : 2,127,987.90 = 672,162.60 : x
  2. Step 2: Convert to fraction form
    1,418,658.60/2,127,987.90 = 672,162.60/x
  3. Step 3: Cross multiply
    1,418,658.60x = 2,127,987.90 × 672,162.60
  4. Step 4: Simplify right side
    1,418,658.60x = 1,430,353,879,632.54
  5. Step 5: Solve for x
    x = 1,430,353,879,632.54/1,418,658.60
  6. Step 6: Final answer
    x = 1,008,243.90

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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.