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Finding the Fourth Proportional to 565,154.58, 779,911.02 and 323,436

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Solution

The fourth proportional to 565,154.58, 779,911.02 and 323,436 is: 446,340.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,154.58 : 779,911.02 = 323,436 : x
  2. Step 2: Convert to fraction form
    565,154.58/779,911.02 = 323,436/x
  3. Step 3: Cross multiply
    565,154.58x = 779,911.02 × 323,436
  4. Step 4: Simplify right side
    565,154.58x = 252,251,300,664.72
  5. Step 5: Solve for x
    x = 252,251,300,664.72/565,154.58
  6. Step 6: Final answer
    x = 446,340.36

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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.