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Finding the Fourth Proportional to 553,358.52, 829,446.48 and 395,107.20

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Solution

The fourth proportional to 553,358.52, 829,446.48 and 395,107.20 is: 592,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,358.52 : 829,446.48 = 395,107.20 : x
  2. Step 2: Convert to fraction form
    553,358.52/829,446.48 = 395,107.20/x
  3. Step 3: Cross multiply
    553,358.52x = 829,446.48 × 395,107.20
  4. Step 4: Simplify right side
    553,358.52x = 327,720,276,262.66
  5. Step 5: Solve for x
    x = 327,720,276,262.66/553,358.52
  6. Step 6: Final answer
    x = 592,238.60

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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.