Home / 1,221,508.14-1,685,685.54-677,654.70

Finding the Fourth Proportional to 1,221,508.14, 1,685,685.54 and 677,654.70

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Solution

The fourth proportional to 1,221,508.14, 1,685,685.54 and 677,654.70 is: 935,165.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,508.14 : 1,685,685.54 = 677,654.70 : x
  2. Step 2: Convert to fraction form
    1,221,508.14/1,685,685.54 = 677,654.70/x
  3. Step 3: Cross multiply
    1,221,508.14x = 1,685,685.54 × 677,654.70
  4. Step 4: Simplify right side
    1,221,508.14x = 1,142,312,728,903.04
  5. Step 5: Solve for x
    x = 1,142,312,728,903.04/1,221,508.14
  6. Step 6: Final answer
    x = 935,165.88

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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.