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Finding the Fourth Proportional to 501,836.40, 692,520.84 and 286,998.12

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Solution

The fourth proportional to 501,836.40, 692,520.84 and 286,998.12 is: 396,049.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,836.40 : 692,520.84 = 286,998.12 : x
  2. Step 2: Convert to fraction form
    501,836.40/692,520.84 = 286,998.12/x
  3. Step 3: Cross multiply
    501,836.40x = 692,520.84 × 286,998.12
  4. Step 4: Simplify right side
    501,836.40x = 198,752,179,140.82
  5. Step 5: Solve for x
    x = 198,752,179,140.82/501,836.40
  6. Step 6: Final answer
    x = 396,049.75

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1.5x scale

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.