Home / 1,126,578.93-1,554,741.18-643,299.33

Finding the Fourth Proportional to 1,126,578.93, 1,554,741.18 and 643,299.33

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Solution

The fourth proportional to 1,126,578.93, 1,554,741.18 and 643,299.33 is: 887,788.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,578.93 : 1,554,741.18 = 643,299.33 : x
  2. Step 2: Convert to fraction form
    1,126,578.93/1,554,741.18 = 643,299.33/x
  3. Step 3: Cross multiply
    1,126,578.93x = 1,554,741.18 × 643,299.33
  4. Step 4: Simplify right side
    1,126,578.93x = 1,000,163,959,417.41
  5. Step 5: Solve for x
    x = 1,000,163,959,417.41/1,126,578.93
  6. Step 6: Final answer
    x = 887,788.63

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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.