Home / 1,217,135.23-1,679,238.68-700,878.03

Finding the Fourth Proportional to 1,217,135.23, 1,679,238.68 and 700,878.03

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Solution

The fourth proportional to 1,217,135.23, 1,679,238.68 and 700,878.03 is: 966,976.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,135.23 : 1,679,238.68 = 700,878.03 : x
  2. Step 2: Convert to fraction form
    1,217,135.23/1,679,238.68 = 700,878.03/x
  3. Step 3: Cross multiply
    1,217,135.23x = 1,679,238.68 × 700,878.03
  4. Step 4: Simplify right side
    1,217,135.23x = 1,176,941,499,690.40
  5. Step 5: Solve for x
    x = 1,176,941,499,690.40/1,217,135.23
  6. Step 6: Final answer
    x = 966,976.78

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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.