Home / 347,821.60-521,732.40-292,709.20

Finding the Fourth Proportional to 347,821.60, 521,732.40 and 292,709.20

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Solution

The fourth proportional to 347,821.60, 521,732.40 and 292,709.20 is: 439,063.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,821.60 : 521,732.40 = 292,709.20 : x
  2. Step 2: Convert to fraction form
    347,821.60/521,732.40 = 292,709.20/x
  3. Step 3: Cross multiply
    347,821.60x = 521,732.40 × 292,709.20
  4. Step 4: Simplify right side
    347,821.60x = 152,715,873,418.08
  5. Step 5: Solve for x
    x = 152,715,873,418.08/347,821.60
  6. Step 6: Final answer
    x = 439,063.80

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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.