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Finding the Fourth Proportional to 592,420.97, 817,538.45 and 320,488.22

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Solution

The fourth proportional to 592,420.97, 817,538.45 and 320,488.22 is: 442,272.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,420.97 : 817,538.45 = 320,488.22 : x
  2. Step 2: Convert to fraction form
    592,420.97/817,538.45 = 320,488.22/x
  3. Step 3: Cross multiply
    592,420.97x = 817,538.45 × 320,488.22
  4. Step 4: Simplify right side
    592,420.97x = 262,011,436,931.93
  5. Step 5: Solve for x
    x = 262,011,436,931.93/592,420.97
  6. Step 6: Final answer
    x = 442,272.39

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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.