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Finding the Fourth Proportional to 553,359.52, 829,447.98 and 395,108.20

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Solution

The fourth proportional to 553,359.52, 829,447.98 and 395,108.20 is: 592,240.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,359.52 : 829,447.98 = 395,108.20 : x
  2. Step 2: Convert to fraction form
    553,359.52/829,447.98 = 395,108.20/x
  3. Step 3: Cross multiply
    553,359.52x = 829,447.98 × 395,108.20
  4. Step 4: Simplify right side
    553,359.52x = 327,721,698,371.44
  5. Step 5: Solve for x
    x = 327,721,698,371.44/553,359.52
  6. Step 6: Final answer
    x = 592,240.10

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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.