Home / 1,216,488.12-1,678,723.78-672,609.56

Finding the Fourth Proportional to 1,216,488.12, 1,678,723.78 and 672,609.56

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Solution

The fourth proportional to 1,216,488.12, 1,678,723.78 and 672,609.56 is: 928,184.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,488.12 : 1,678,723.78 = 672,609.56 : x
  2. Step 2: Convert to fraction form
    1,216,488.12/1,678,723.78 = 672,609.56/x
  3. Step 3: Cross multiply
    1,216,488.12x = 1,678,723.78 × 672,609.56
  4. Step 4: Simplify right side
    1,216,488.12x = 1,129,125,663,027.34
  5. Step 5: Solve for x
    x = 1,129,125,663,027.34/1,216,488.12
  6. Step 6: Final answer
    x = 928,184.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.