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Finding the Fourth Proportional to 666,089.49, 999,462.29 and 311,051.91

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Solution

The fourth proportional to 666,089.49, 999,462.29 and 311,051.91 is: 466,731.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,089.49 : 999,462.29 = 311,051.91 : x
  2. Step 2: Convert to fraction form
    666,089.49/999,462.29 = 311,051.91/x
  3. Step 3: Cross multiply
    666,089.49x = 999,462.29 × 311,051.91
  4. Step 4: Simplify right side
    666,089.49x = 310,884,654,277.47
  5. Step 5: Solve for x
    x = 310,884,654,277.47/666,089.49
  6. Step 6: Final answer
    x = 466,731.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.