Home / 579,628.10-869,150.55-343,043.30

Finding the Fourth Proportional to 579,628.10, 869,150.55 and 343,043.30

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Solution

The fourth proportional to 579,628.10, 869,150.55 and 343,043.30 is: 514,392.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,628.10 : 869,150.55 = 343,043.30 : x
  2. Step 2: Convert to fraction form
    579,628.10/869,150.55 = 343,043.30/x
  3. Step 3: Cross multiply
    579,628.10x = 869,150.55 × 343,043.30
  4. Step 4: Simplify right side
    579,628.10x = 298,156,272,868.82
  5. Step 5: Solve for x
    x = 298,156,272,868.82/579,628.10
  6. Step 6: Final answer
    x = 514,392.37

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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.