Home / 1,165,019.67-1,606,898.97-777,639.78

Finding the Fourth Proportional to 1,165,019.67, 1,606,898.97 and 777,639.78

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Solution

The fourth proportional to 1,165,019.67, 1,606,898.97 and 777,639.78 is: 1,072,590.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,019.67 : 1,606,898.97 = 777,639.78 : x
  2. Step 2: Convert to fraction form
    1,165,019.67/1,606,898.97 = 777,639.78/x
  3. Step 3: Cross multiply
    1,165,019.67x = 1,606,898.97 × 777,639.78
  4. Step 4: Simplify right side
    1,165,019.67x = 1,249,588,561,513.03
  5. Step 5: Solve for x
    x = 1,249,588,561,513.03/1,165,019.67
  6. Step 6: Final answer
    x = 1,072,590.10

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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.