Home / 806,742.32-1,210,102.54-274,634.28

Finding the Fourth Proportional to 806,742.32, 1,210,102.54 and 274,634.28

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Solution

The fourth proportional to 806,742.32, 1,210,102.54 and 274,634.28 is: 411,947.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,742.32 : 1,210,102.54 = 274,634.28 : x
  2. Step 2: Convert to fraction form
    806,742.32/1,210,102.54 = 274,634.28/x
  3. Step 3: Cross multiply
    806,742.32x = 1,210,102.54 × 274,634.28
  4. Step 4: Simplify right side
    806,742.32x = 332,335,639,799.07
  5. Step 5: Solve for x
    x = 332,335,639,799.07/806,742.32
  6. Step 6: Final answer
    x = 411,947.70

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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.