Home / 579,708.91-868,676.57-309,875.43

Finding the Fourth Proportional to 579,708.91, 868,676.57 and 309,875.43

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Solution

The fourth proportional to 579,708.91, 868,676.57 and 309,875.43 is: 464,339.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,708.91 : 868,676.57 = 309,875.43 : x
  2. Step 2: Convert to fraction form
    579,708.91/868,676.57 = 309,875.43/x
  3. Step 3: Cross multiply
    579,708.91x = 868,676.57 × 309,875.43
  4. Step 4: Simplify right side
    579,708.91x = 269,181,528,529.87
  5. Step 5: Solve for x
    x = 269,181,528,529.87/579,708.91
  6. Step 6: Final answer
    x = 464,339.12

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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.