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Finding the Fourth Proportional to 592,652.81, 817,860.82 and 320,720.66

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Solution

The fourth proportional to 592,652.81, 817,860.82 and 320,720.66 is: 442,594.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,652.81 : 817,860.82 = 320,720.66 : x
  2. Step 2: Convert to fraction form
    592,652.81/817,860.82 = 320,720.66/x
  3. Step 3: Cross multiply
    592,652.81x = 817,860.82 × 320,720.66
  4. Step 4: Simplify right side
    592,652.81x = 262,304,861,978.54
  5. Step 5: Solve for x
    x = 262,304,861,978.54/592,652.81
  6. Step 6: Final answer
    x = 442,594.48

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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.