Home / 386,468.60-579,962.10-228,529.40

Finding the Fourth Proportional to 386,468.60, 579,962.10 and 228,529.40

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Solution

The fourth proportional to 386,468.60, 579,962.10 and 228,529.40 is: 342,947.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,468.60 : 579,962.10 = 228,529.40 : x
  2. Step 2: Convert to fraction form
    386,468.60/579,962.10 = 228,529.40/x
  3. Step 3: Cross multiply
    386,468.60x = 579,962.10 × 228,529.40
  4. Step 4: Simplify right side
    386,468.60x = 132,538,390,735.74
  5. Step 5: Solve for x
    x = 132,538,390,735.74/386,468.60
  6. Step 6: Final answer
    x = 342,947.37

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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.