Home / 1,298,674.69-1,792,144.58-717,922.31

Finding the Fourth Proportional to 1,298,674.69, 1,792,144.58 and 717,922.31

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Solution

The fourth proportional to 1,298,674.69, 1,792,144.58 and 717,922.31 is: 990,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,674.69 : 1,792,144.58 = 717,922.31 : x
  2. Step 2: Convert to fraction form
    1,298,674.69/1,792,144.58 = 717,922.31/x
  3. Step 3: Cross multiply
    1,298,674.69x = 1,792,144.58 × 717,922.31
  4. Step 4: Simplify right side
    1,298,674.69x = 1,286,620,564,177.25
  5. Step 5: Solve for x
    x = 1,286,620,564,177.25/1,298,674.69
  6. Step 6: Final answer
    x = 990,718.13

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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.