Home / 985,578.67-1,360,389.43-577,768.78

Finding the Fourth Proportional to 985,578.67, 1,360,389.43 and 577,768.78

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Solution

The fourth proportional to 985,578.67, 1,360,389.43 and 577,768.78 is: 797,491.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,578.67 : 1,360,389.43 = 577,768.78 : x
  2. Step 2: Convert to fraction form
    985,578.67/1,360,389.43 = 577,768.78/x
  3. Step 3: Cross multiply
    985,578.67x = 1,360,389.43 × 577,768.78
  4. Step 4: Simplify right side
    985,578.67x = 785,990,542,677.25
  5. Step 5: Solve for x
    x = 785,990,542,677.25/985,578.67
  6. Step 6: Final answer
    x = 797,491.43

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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.