Home / 1,216,341.12-1,678,546.56-679,797.12

Finding the Fourth Proportional to 1,216,341.12, 1,678,546.56 and 679,797.12

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Solution

The fourth proportional to 1,216,341.12, 1,678,546.56 and 679,797.12 is: 938,117.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,341.12 : 1,678,546.56 = 679,797.12 : x
  2. Step 2: Convert to fraction form
    1,216,341.12/1,678,546.56 = 679,797.12/x
  3. Step 3: Cross multiply
    1,216,341.12x = 1,678,546.56 × 679,797.12
  4. Step 4: Simplify right side
    1,216,341.12x = 1,141,071,117,273.91
  5. Step 5: Solve for x
    x = 1,141,071,117,273.91/1,216,341.12
  6. Step 6: Final answer
    x = 938,117.69

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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.