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Finding the Fourth Proportional to 504,679.73, 696,473.57 and 289,862.87

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Solution

The fourth proportional to 504,679.73, 696,473.57 and 289,862.87 is: 400,019.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,679.73 : 696,473.57 = 289,862.87 : x
  2. Step 2: Convert to fraction form
    504,679.73/696,473.57 = 289,862.87/x
  3. Step 3: Cross multiply
    504,679.73x = 696,473.57 × 289,862.87
  4. Step 4: Simplify right side
    504,679.73x = 201,881,825,121.64
  5. Step 5: Solve for x
    x = 201,881,825,121.64/504,679.73
  6. Step 6: Final answer
    x = 400,019.69

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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.