Home / 815,920.83-1,223,881.02-254,955.33

Finding the Fourth Proportional to 815,920.83, 1,223,881.02 and 254,955.33

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Solution

The fourth proportional to 815,920.83, 1,223,881.02 and 254,955.33 is: 382,432.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,920.83 : 1,223,881.02 = 254,955.33 : x
  2. Step 2: Convert to fraction form
    815,920.83/1,223,881.02 = 254,955.33/x
  3. Step 3: Cross multiply
    815,920.83x = 1,223,881.02 × 254,955.33
  4. Step 4: Simplify right side
    815,920.83x = 312,034,989,334.84
  5. Step 5: Solve for x
    x = 312,034,989,334.84/815,920.83
  6. Step 6: Final answer
    x = 382,432.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.