Home / 855,629.70-1,180,398.33-515,909.22

Finding the Fourth Proportional to 855,629.70, 1,180,398.33 and 515,909.22

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Solution

The fourth proportional to 855,629.70, 1,180,398.33 and 515,909.22 is: 711,731.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,629.70 : 1,180,398.33 = 515,909.22 : x
  2. Step 2: Convert to fraction form
    855,629.70/1,180,398.33 = 515,909.22/x
  3. Step 3: Cross multiply
    855,629.70x = 1,180,398.33 × 515,909.22
  4. Step 4: Simplify right side
    855,629.70x = 608,978,381,719.60
  5. Step 5: Solve for x
    x = 608,978,381,719.60/855,629.70
  6. Step 6: Final answer
    x = 711,731.23

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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.