Home / 709,869.14-979,705.32-404,019.89

Finding the Fourth Proportional to 709,869.14, 979,705.32 and 404,019.89

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Solution

The fourth proportional to 709,869.14, 979,705.32 and 404,019.89 is: 557,596.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,869.14 : 979,705.32 = 404,019.89 : x
  2. Step 2: Convert to fraction form
    709,869.14/979,705.32 = 404,019.89/x
  3. Step 3: Cross multiply
    709,869.14x = 979,705.32 × 404,019.89
  4. Step 4: Simplify right side
    709,869.14x = 395,820,435,618.82
  5. Step 5: Solve for x
    x = 395,820,435,618.82/709,869.14
  6. Step 6: Final answer
    x = 557,596.34

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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.