Home / 1,298,518.69-1,793,104.80-809,323.11

Finding the Fourth Proportional to 1,298,518.69, 1,793,104.80 and 809,323.11

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Solution

The fourth proportional to 1,298,518.69, 1,793,104.80 and 809,323.11 is: 1,117,582.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,518.69 : 1,793,104.80 = 809,323.11 : x
  2. Step 2: Convert to fraction form
    1,298,518.69/1,793,104.80 = 809,323.11/x
  3. Step 3: Cross multiply
    1,298,518.69x = 1,793,104.80 × 809,323.11
  4. Step 4: Simplify right side
    1,298,518.69x = 1,451,201,144,326.40
  5. Step 5: Solve for x
    x = 1,451,201,144,326.40/1,298,518.69
  6. Step 6: Final answer
    x = 1,117,582.02

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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.