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Finding the Fourth Proportional to 1,698,618, 2,548,320.66 and 576,687

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Solution

The fourth proportional to 1,698,618, 2,548,320.66 and 576,687 is: 865,164.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698,618 : 2,548,320.66 = 576,687 : x
  2. Step 2: Convert to fraction form
    1,698,618/2,548,320.66 = 576,687/x
  3. Step 3: Cross multiply
    1,698,618x = 2,548,320.66 × 576,687
  4. Step 4: Simplify right side
    1,698,618x = 1,469,583,396,453.42
  5. Step 5: Solve for x
    x = 1,469,583,396,453.42/1,698,618
  6. Step 6: Final answer
    x = 865,164.15

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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.