Home / 1,206,636.64-1,663,986.66-815,030.80

Finding the Fourth Proportional to 1,206,636.64, 1,663,986.66 and 815,030.80

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Solution

The fourth proportional to 1,206,636.64, 1,663,986.66 and 815,030.80 is: 1,123,950.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,636.64 : 1,663,986.66 = 815,030.80 : x
  2. Step 2: Convert to fraction form
    1,206,636.64/1,663,986.66 = 815,030.80/x
  3. Step 3: Cross multiply
    1,206,636.64x = 1,663,986.66 × 815,030.80
  4. Step 4: Simplify right side
    1,206,636.64x = 1,356,200,378,689.13
  5. Step 5: Solve for x
    x = 1,356,200,378,689.13/1,206,636.64
  6. Step 6: Final answer
    x = 1,123,950.93

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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.