Home / 1,126,593.78-1,554,844.05-643,048.08

Finding the Fourth Proportional to 1,126,593.78, 1,554,844.05 and 643,048.08

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Solution

The fourth proportional to 1,126,593.78, 1,554,844.05 and 643,048.08 is: 887,488.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,593.78 : 1,554,844.05 = 643,048.08 : x
  2. Step 2: Convert to fraction form
    1,126,593.78/1,554,844.05 = 643,048.08/x
  3. Step 3: Cross multiply
    1,126,593.78x = 1,554,844.05 × 643,048.08
  4. Step 4: Simplify right side
    1,126,593.78x = 999,839,481,051.92
  5. Step 5: Solve for x
    x = 999,839,481,051.92/1,126,593.78
  6. Step 6: Final answer
    x = 887,488.91

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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.