Home / 1,172,811.05-1,618,631.70-656,761.43

Finding the Fourth Proportional to 1,172,811.05, 1,618,631.70 and 656,761.43

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Solution

The fourth proportional to 1,172,811.05, 1,618,631.70 and 656,761.43 is: 906,416.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,811.05 : 1,618,631.70 = 656,761.43 : x
  2. Step 2: Convert to fraction form
    1,172,811.05/1,618,631.70 = 656,761.43/x
  3. Step 3: Cross multiply
    1,172,811.05x = 1,618,631.70 × 656,761.43
  4. Step 4: Simplify right side
    1,172,811.05x = 1,063,054,869,935.33
  5. Step 5: Solve for x
    x = 1,063,054,869,935.33/1,172,811.05
  6. Step 6: Final answer
    x = 906,416.14

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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.