Home / 1,148,431.32-1,584,819.76-639,133.56

Finding the Fourth Proportional to 1,148,431.32, 1,584,819.76 and 639,133.56

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Solution

The fourth proportional to 1,148,431.32, 1,584,819.76 and 639,133.56 is: 881,995.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,431.32 : 1,584,819.76 = 639,133.56 : x
  2. Step 2: Convert to fraction form
    1,148,431.32/1,584,819.76 = 639,133.56/x
  3. Step 3: Cross multiply
    1,148,431.32x = 1,584,819.76 × 639,133.56
  4. Step 4: Simplify right side
    1,148,431.32x = 1,012,911,495,167.15
  5. Step 5: Solve for x
    x = 1,012,911,495,167.15/1,148,431.32
  6. Step 6: Final answer
    x = 881,995.71

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.