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Finding the Fourth Proportional to 488,015.14, 730,749.46 and 392,724.84

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Solution

The fourth proportional to 488,015.14, 730,749.46 and 392,724.84 is: 588,062.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,015.14 : 730,749.46 = 392,724.84 : x
  2. Step 2: Convert to fraction form
    488,015.14/730,749.46 = 392,724.84/x
  3. Step 3: Cross multiply
    488,015.14x = 730,749.46 × 392,724.84
  4. Step 4: Simplify right side
    488,015.14x = 286,983,464,758.59
  5. Step 5: Solve for x
    x = 286,983,464,758.59/488,015.14
  6. Step 6: Final answer
    x = 588,062.63

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1.5x scale

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.