Home / 1,358,557.63-1,874,769.89-777,761.51

Finding the Fourth Proportional to 1,358,557.63, 1,874,769.89 and 777,761.51

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Solution

The fourth proportional to 1,358,557.63, 1,874,769.89 and 777,761.51 is: 1,073,288.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,557.63 : 1,874,769.89 = 777,761.51 : x
  2. Step 2: Convert to fraction form
    1,358,557.63/1,874,769.89 = 777,761.51/x
  3. Step 3: Cross multiply
    1,358,557.63x = 1,874,769.89 × 777,761.51
  4. Step 4: Simplify right side
    1,358,557.63x = 1,458,123,860,548.93
  5. Step 5: Solve for x
    x = 1,458,123,860,548.93/1,358,557.63
  6. Step 6: Final answer
    x = 1,073,288.19

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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.