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Finding the Fourth Proportional to 503,979.24, 695,370.42 and 286,139.64

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Solution

The fourth proportional to 503,979.24, 695,370.42 and 286,139.64 is: 394,804.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,979.24 : 695,370.42 = 286,139.64 : x
  2. Step 2: Convert to fraction form
    503,979.24/695,370.42 = 286,139.64/x
  3. Step 3: Cross multiply
    503,979.24x = 695,370.42 × 286,139.64
  4. Step 4: Simplify right side
    503,979.24x = 198,973,041,645.45
  5. Step 5: Solve for x
    x = 198,973,041,645.45/503,979.24
  6. Step 6: Final answer
    x = 394,804.04

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Why These Related Problems?

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