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Finding the Fourth Proportional to 592,422.47, 817,540.52 and 320,489.72

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Solution

The fourth proportional to 592,422.47, 817,540.52 and 320,489.72 is: 442,274.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,422.47 : 817,540.52 = 320,489.72 : x
  2. Step 2: Convert to fraction form
    592,422.47/817,540.52 = 320,489.72/x
  3. Step 3: Cross multiply
    592,422.47x = 817,540.52 × 320,489.72
  4. Step 4: Simplify right side
    592,422.47x = 262,013,326,653.30
  5. Step 5: Solve for x
    x = 262,013,326,653.30/592,422.47
  6. Step 6: Final answer
    x = 442,274.46

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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.