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Finding the Fourth Proportional to 448,752.12, 672,567.69 and 288,401.28

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Solution

The fourth proportional to 448,752.12, 672,567.69 and 288,401.28 is: 432,241.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,752.12 : 672,567.69 = 288,401.28 : x
  2. Step 2: Convert to fraction form
    448,752.12/672,567.69 = 288,401.28/x
  3. Step 3: Cross multiply
    448,752.12x = 672,567.69 × 288,401.28
  4. Step 4: Simplify right side
    448,752.12x = 193,969,382,682.64
  5. Step 5: Solve for x
    x = 193,969,382,682.64/448,752.12
  6. Step 6: Final answer
    x = 432,241.71

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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.