Home / 861,236.85-1,187,275.05-605,795.25

Finding the Fourth Proportional to 861,236.85, 1,187,275.05 and 605,795.25

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Solution

The fourth proportional to 861,236.85, 1,187,275.05 and 605,795.25 is: 835,130.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,236.85 : 1,187,275.05 = 605,795.25 : x
  2. Step 2: Convert to fraction form
    861,236.85/1,187,275.05 = 605,795.25/x
  3. Step 3: Cross multiply
    861,236.85x = 1,187,275.05 × 605,795.25
  4. Step 4: Simplify right side
    861,236.85x = 719,245,585,733.51
  5. Step 5: Solve for x
    x = 719,245,585,733.51/861,236.85
  6. Step 6: Final answer
    x = 835,130.99

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1.5x scale

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.