Home / 1,190,465.66-1,785,765.90-380,921.24

Finding the Fourth Proportional to 1,190,465.66, 1,785,765.90 and 380,921.24

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Solution

The fourth proportional to 1,190,465.66, 1,785,765.90 and 380,921.24 is: 571,403.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,465.66 : 1,785,765.90 = 380,921.24 : x
  2. Step 2: Convert to fraction form
    1,190,465.66/1,785,765.90 = 380,921.24/x
  3. Step 3: Cross multiply
    1,190,465.66x = 1,785,765.90 × 380,921.24
  4. Step 4: Simplify right side
    1,190,465.66x = 680,236,160,977.72
  5. Step 5: Solve for x
    x = 680,236,160,977.72/1,190,465.66
  6. Step 6: Final answer
    x = 571,403.43

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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.