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Finding the Fourth Proportional to 869,484.69, 1,199,908.11 and 482,287.50

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Solution

The fourth proportional to 869,484.69, 1,199,908.11 and 482,287.50 is: 665,567.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,484.69 : 1,199,908.11 = 482,287.50 : x
  2. Step 2: Convert to fraction form
    869,484.69/1,199,908.11 = 482,287.50/x
  3. Step 3: Cross multiply
    869,484.69x = 1,199,908.11 × 482,287.50
  4. Step 4: Simplify right side
    869,484.69x = 578,700,682,601.63
  5. Step 5: Solve for x
    x = 578,700,682,601.63/869,484.69
  6. Step 6: Final answer
    x = 665,567.42

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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.