Home / 1,207,965.94-1,666,950.50-664,097.78

Finding the Fourth Proportional to 1,207,965.94, 1,666,950.50 and 664,097.78

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Solution

The fourth proportional to 1,207,965.94, 1,666,950.50 and 664,097.78 is: 916,431.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,965.94 : 1,666,950.50 = 664,097.78 : x
  2. Step 2: Convert to fraction form
    1,207,965.94/1,666,950.50 = 664,097.78/x
  3. Step 3: Cross multiply
    1,207,965.94x = 1,666,950.50 × 664,097.78
  4. Step 4: Simplify right side
    1,207,965.94x = 1,107,018,132,247.51
  5. Step 5: Solve for x
    x = 1,107,018,132,247.51/1,207,965.94
  6. Step 6: Final answer
    x = 916,431.58

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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.