Home / 1,257,735.18-1,736,753.55-1,217,063.61

Finding the Fourth Proportional to 1,257,735.18, 1,736,753.55 and 1,217,063.61

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Solution

The fourth proportional to 1,257,735.18, 1,736,753.55 and 1,217,063.61 is: 1,680,591.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,735.18 : 1,736,753.55 = 1,217,063.61 : x
  2. Step 2: Convert to fraction form
    1,257,735.18/1,736,753.55 = 1,217,063.61/x
  3. Step 3: Cross multiply
    1,257,735.18x = 1,736,753.55 × 1,217,063.61
  4. Step 4: Simplify right side
    1,257,735.18x = 2,113,739,545,243.32
  5. Step 5: Solve for x
    x = 2,113,739,545,243.32/1,257,735.18
  6. Step 6: Final answer
    x = 1,680,591.89

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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.