Home / 1,238,979.57-1,856,054.33-697,580.97

Finding the Fourth Proportional to 1,238,979.57, 1,856,054.33 and 697,580.97

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Solution

The fourth proportional to 1,238,979.57, 1,856,054.33 and 697,580.97 is: 1,045,011.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,979.57 : 1,856,054.33 = 697,580.97 : x
  2. Step 2: Convert to fraction form
    1,238,979.57/1,856,054.33 = 697,580.97/x
  3. Step 3: Cross multiply
    1,238,979.57x = 1,856,054.33 × 697,580.97
  4. Step 4: Simplify right side
    1,238,979.57x = 1,294,748,176,406.20
  5. Step 5: Solve for x
    x = 1,294,748,176,406.20/1,238,979.57
  6. Step 6: Final answer
    x = 1,045,011.72

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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.