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Finding the Fourth Proportional to 479,539.80, 661,717.80 and 264,666.06

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Solution

The fourth proportional to 479,539.80, 661,717.80 and 264,666.06 is: 365,213.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,539.80 : 661,717.80 = 264,666.06 : x
  2. Step 2: Convert to fraction form
    479,539.80/661,717.80 = 264,666.06/x
  3. Step 3: Cross multiply
    479,539.80x = 661,717.80 × 264,666.06
  4. Step 4: Simplify right side
    479,539.80x = 175,134,242,957.87
  5. Step 5: Solve for x
    x = 175,134,242,957.87/479,539.80
  6. Step 6: Final answer
    x = 365,213.15

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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.