Home / 1,216,016.19-1,678,013.55-672,121.44

Finding the Fourth Proportional to 1,216,016.19, 1,678,013.55 and 672,121.44

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Solution

The fourth proportional to 1,216,016.19, 1,678,013.55 and 672,121.44 is: 927,478.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,016.19 : 1,678,013.55 = 672,121.44 : x
  2. Step 2: Convert to fraction form
    1,216,016.19/1,678,013.55 = 672,121.44/x
  3. Step 3: Cross multiply
    1,216,016.19x = 1,678,013.55 × 672,121.44
  4. Step 4: Simplify right side
    1,216,016.19x = 1,127,828,883,565.51
  5. Step 5: Solve for x
    x = 1,127,828,883,565.51/1,216,016.19
  6. Step 6: Final answer
    x = 927,478.51

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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.