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Finding the Fourth Proportional to 1,698,617, 2,548,319.16 and 576,686

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Solution

The fourth proportional to 1,698,617, 2,548,319.16 and 576,686 is: 865,162.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698,617 : 2,548,319.16 = 576,686 : x
  2. Step 2: Convert to fraction form
    1,698,617/2,548,319.16 = 576,686/x
  3. Step 3: Cross multiply
    1,698,617x = 2,548,319.16 × 576,686
  4. Step 4: Simplify right side
    1,698,617x = 1,469,579,983,103.76
  5. Step 5: Solve for x
    x = 1,469,579,983,103.76/1,698,617
  6. Step 6: Final answer
    x = 865,162.65

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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.