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Finding the Fourth Proportional to 672,488.75, 928,020.62 and 366,562.49

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Solution

The fourth proportional to 672,488.75, 928,020.62 and 366,562.49 is: 505,848.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,488.75 : 928,020.62 = 366,562.49 : x
  2. Step 2: Convert to fraction form
    672,488.75/928,020.62 = 366,562.49/x
  3. Step 3: Cross multiply
    672,488.75x = 928,020.62 × 366,562.49
  4. Step 4: Simplify right side
    672,488.75x = 340,177,542,765.63
  5. Step 5: Solve for x
    x = 340,177,542,765.63/672,488.75
  6. Step 6: Final answer
    x = 505,848.68

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1.5x scale

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.