Home / 815,419.70-1,222,692.15-341,569.70

Finding the Fourth Proportional to 815,419.70, 1,222,692.15 and 341,569.70

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Solution

The fourth proportional to 815,419.70, 1,222,692.15 and 341,569.70 is: 512,171.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,419.70 : 1,222,692.15 = 341,569.70 : x
  2. Step 2: Convert to fraction form
    815,419.70/1,222,692.15 = 341,569.70/x
  3. Step 3: Cross multiply
    815,419.70x = 1,222,692.15 × 341,569.70
  4. Step 4: Simplify right side
    815,419.70x = 417,634,590,867.86
  5. Step 5: Solve for x
    x = 417,634,590,867.86/815,419.70
  6. Step 6: Final answer
    x = 512,171.33

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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.