Home / 579,157.34-867,979.40-322,979.68

Finding the Fourth Proportional to 579,157.34, 867,979.40 and 322,979.68

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Solution

The fourth proportional to 579,157.34, 867,979.40 and 322,979.68 is: 484,047.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,157.34 : 867,979.40 = 322,979.68 : x
  2. Step 2: Convert to fraction form
    579,157.34/867,979.40 = 322,979.68/x
  3. Step 3: Cross multiply
    579,157.34x = 867,979.40 × 322,979.68
  4. Step 4: Simplify right side
    579,157.34x = 280,339,708,858.59
  5. Step 5: Solve for x
    x = 280,339,708,858.59/579,157.34
  6. Step 6: Final answer
    x = 484,047.58

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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.