Home / 386,472.60-579,968.10-228,533.40

Finding the Fourth Proportional to 386,472.60, 579,968.10 and 228,533.40

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Solution

The fourth proportional to 386,472.60, 579,968.10 and 228,533.40 is: 342,953.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,472.60 : 579,968.10 = 228,533.40 : x
  2. Step 2: Convert to fraction form
    386,472.60/579,968.10 = 228,533.40/x
  3. Step 3: Cross multiply
    386,472.60x = 579,968.10 × 228,533.40
  4. Step 4: Simplify right side
    386,472.60x = 132,542,081,784.54
  5. Step 5: Solve for x
    x = 132,542,081,784.54/386,472.60
  6. Step 6: Final answer
    x = 342,953.37

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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.