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Finding the Fourth Proportional to 577,073.61, 796,402.80 and 318,945.02

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Solution

The fourth proportional to 577,073.61, 796,402.80 and 318,945.02 is: 440,166.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,073.61 : 796,402.80 = 318,945.02 : x
  2. Step 2: Convert to fraction form
    577,073.61/796,402.80 = 318,945.02/x
  3. Step 3: Cross multiply
    577,073.61x = 796,402.80 × 318,945.02
  4. Step 4: Simplify right side
    577,073.61x = 254,008,702,992.04
  5. Step 5: Solve for x
    x = 254,008,702,992.04/577,073.61
  6. Step 6: Final answer
    x = 440,166.90

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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.