Home / 1,257,678.89-1,735,539.68-684,717.83

Finding the Fourth Proportional to 1,257,678.89, 1,735,539.68 and 684,717.83

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Solution

The fourth proportional to 1,257,678.89, 1,735,539.68 and 684,717.83 is: 944,879.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,678.89 : 1,735,539.68 = 684,717.83 : x
  2. Step 2: Convert to fraction form
    1,257,678.89/1,735,539.68 = 684,717.83/x
  3. Step 3: Cross multiply
    1,257,678.89x = 1,735,539.68 × 684,717.83
  4. Step 4: Simplify right side
    1,257,678.89x = 1,188,354,963,568.49
  5. Step 5: Solve for x
    x = 1,188,354,963,568.49/1,257,678.89
  6. Step 6: Final answer
    x = 944,879.47

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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.