Home / 1,257,930.30-1,735,964.55-684,981.66

Finding the Fourth Proportional to 1,257,930.30, 1,735,964.55 and 684,981.66

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Solution

The fourth proportional to 1,257,930.30, 1,735,964.55 and 684,981.66 is: 945,285.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,930.30 : 1,735,964.55 = 684,981.66 : x
  2. Step 2: Convert to fraction form
    1,257,930.30/1,735,964.55 = 684,981.66/x
  3. Step 3: Cross multiply
    1,257,930.30x = 1,735,964.55 × 684,981.66
  4. Step 4: Simplify right side
    1,257,930.30x = 1,189,103,879,160.15
  5. Step 5: Solve for x
    x = 1,189,103,879,160.15/1,257,930.30
  6. Step 6: Final answer
    x = 945,285.98

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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.