Home / 1,126,493.14-1,554,501.09-643,039.06

Finding the Fourth Proportional to 1,126,493.14, 1,554,501.09 and 643,039.06

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Solution

The fourth proportional to 1,126,493.14, 1,554,501.09 and 643,039.06 is: 887,359.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,493.14 : 1,554,501.09 = 643,039.06 : x
  2. Step 2: Convert to fraction form
    1,126,493.14/1,554,501.09 = 643,039.06/x
  3. Step 3: Cross multiply
    1,126,493.14x = 1,554,501.09 × 643,039.06
  4. Step 4: Simplify right side
    1,126,493.14x = 999,604,919,682.58
  5. Step 5: Solve for x
    x = 999,604,919,682.58/1,126,493.14
  6. Step 6: Final answer
    x = 887,359.97

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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.