Home / 613,087.71-845,581.77-398,296.98

Finding the Fourth Proportional to 613,087.71, 845,581.77 and 398,296.98

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Solution

The fourth proportional to 613,087.71, 845,581.77 and 398,296.98 is: 549,338.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,087.71 : 845,581.77 = 398,296.98 : x
  2. Step 2: Convert to fraction form
    613,087.71/845,581.77 = 398,296.98/x
  3. Step 3: Cross multiply
    613,087.71x = 845,581.77 × 398,296.98
  4. Step 4: Simplify right side
    613,087.71x = 336,792,665,334.06
  5. Step 5: Solve for x
    x = 336,792,665,334.06/613,087.71
  6. Step 6: Final answer
    x = 549,338.47

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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.