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Finding the Fourth Proportional to 457,315.10, 685,972.65 and 448,567.10

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Solution

The fourth proportional to 457,315.10, 685,972.65 and 448,567.10 is: 672,850.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,315.10 : 685,972.65 = 448,567.10 : x
  2. Step 2: Convert to fraction form
    457,315.10/685,972.65 = 448,567.10/x
  3. Step 3: Cross multiply
    457,315.10x = 685,972.65 × 448,567.10
  4. Step 4: Simplify right side
    457,315.10x = 307,704,762,289.82
  5. Step 5: Solve for x
    x = 307,704,762,289.82/457,315.10
  6. Step 6: Final answer
    x = 672,850.65

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Similar ratio
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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.