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Finding the Fourth Proportional to 500,886.28, 751,091.58 and 290,588.68

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Solution

The fourth proportional to 500,886.28, 751,091.58 and 290,588.68 is: 435,745.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,886.28 : 751,091.58 = 290,588.68 : x
  2. Step 2: Convert to fraction form
    500,886.28/751,091.58 = 290,588.68/x
  3. Step 3: Cross multiply
    500,886.28x = 751,091.58 × 290,588.68
  4. Step 4: Simplify right side
    500,886.28x = 218,258,710,791.31
  5. Step 5: Solve for x
    x = 218,258,710,791.31/500,886.28
  6. Step 6: Final answer
    x = 435,745.04

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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.