Home / 815,038.12-1,222,621.98-254,077.48

Finding the Fourth Proportional to 815,038.12, 1,222,621.98 and 254,077.48

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Solution

The fourth proportional to 815,038.12, 1,222,621.98 and 254,077.48 is: 381,136.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,038.12 : 1,222,621.98 = 254,077.48 : x
  2. Step 2: Convert to fraction form
    815,038.12/1,222,621.98 = 254,077.48/x
  3. Step 3: Cross multiply
    815,038.12x = 1,222,621.98 × 254,077.48
  4. Step 4: Simplify right side
    815,038.12x = 310,640,711,671.01
  5. Step 5: Solve for x
    x = 310,640,711,671.01/815,038.12
  6. Step 6: Final answer
    x = 381,136.42

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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.