Home / 815,174.34-1,222,765.59-477,977.82

Finding the Fourth Proportional to 815,174.34, 1,222,765.59 and 477,977.82

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Solution

The fourth proportional to 815,174.34, 1,222,765.59 and 477,977.82 is: 716,969.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,174.34 : 1,222,765.59 = 477,977.82 : x
  2. Step 2: Convert to fraction form
    815,174.34/1,222,765.59 = 477,977.82/x
  3. Step 3: Cross multiply
    815,174.34x = 1,222,765.59 × 477,977.82
  4. Step 4: Simplify right side
    815,174.34x = 584,454,831,079.21
  5. Step 5: Solve for x
    x = 584,454,831,079.21/815,174.34
  6. Step 6: Final answer
    x = 716,969.12

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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.