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Finding the Fourth Proportional to 479,681.63, 661,943.30 and 264,817.11

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Solution

The fourth proportional to 479,681.63, 661,943.30 and 264,817.11 is: 365,438.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,681.63 : 661,943.30 = 264,817.11 : x
  2. Step 2: Convert to fraction form
    479,681.63/661,943.30 = 264,817.11/x
  3. Step 3: Cross multiply
    479,681.63x = 661,943.30 × 264,817.11
  4. Step 4: Simplify right side
    479,681.63x = 175,293,911,689.86
  5. Step 5: Solve for x
    x = 175,293,911,689.86/479,681.63
  6. Step 6: Final answer
    x = 365,438.03

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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.