Home / 592,321.22-817,403.31-320,389.10

Finding the Fourth Proportional to 592,321.22, 817,403.31 and 320,389.10

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Solution

The fourth proportional to 592,321.22, 817,403.31 and 320,389.10 is: 442,136.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,321.22 : 817,403.31 = 320,389.10 : x
  2. Step 2: Convert to fraction form
    592,321.22/817,403.31 = 320,389.10/x
  3. Step 3: Cross multiply
    592,321.22x = 817,403.31 × 320,389.10
  4. Step 4: Simplify right side
    592,321.22x = 261,887,110,827.92
  5. Step 5: Solve for x
    x = 261,887,110,827.92/592,321.22
  6. Step 6: Final answer
    x = 442,136.97

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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.