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Finding the Fourth Proportional to 592,660.50, 817,871.45 and 320,728.39

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Solution

The fourth proportional to 592,660.50, 817,871.45 and 320,728.39 is: 442,605.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,660.50 : 817,871.45 = 320,728.39 : x
  2. Step 2: Convert to fraction form
    592,660.50/817,871.45 = 320,728.39/x
  3. Step 3: Cross multiply
    592,660.50x = 817,871.45 × 320,728.39
  4. Step 4: Simplify right side
    592,660.50x = 262,314,594,337.67
  5. Step 5: Solve for x
    x = 262,314,594,337.67/592,660.50
  6. Step 6: Final answer
    x = 442,605.16

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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.