Home / 578,171.58-867,627.54-312,117.36

Finding the Fourth Proportional to 578,171.58, 867,627.54 and 312,117.36

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Solution

The fourth proportional to 578,171.58, 867,627.54 and 312,117.36 is: 468,375.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,171.58 : 867,627.54 = 312,117.36 : x
  2. Step 2: Convert to fraction form
    578,171.58/867,627.54 = 312,117.36/x
  3. Step 3: Cross multiply
    578,171.58x = 867,627.54 × 312,117.36
  4. Step 4: Simplify right side
    578,171.58x = 270,801,617,248.09
  5. Step 5: Solve for x
    x = 270,801,617,248.09/578,171.58
  6. Step 6: Final answer
    x = 468,375.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.