Home / 409,979.08-565,714.56-228,669.76

Finding the Fourth Proportional to 409,979.08, 565,714.56 and 228,669.76

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Solution

The fourth proportional to 409,979.08, 565,714.56 and 228,669.76 is: 315,532.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,979.08 : 565,714.56 = 228,669.76 : x
  2. Step 2: Convert to fraction form
    409,979.08/565,714.56 = 228,669.76/x
  3. Step 3: Cross multiply
    409,979.08x = 565,714.56 × 228,669.76
  4. Step 4: Simplify right side
    409,979.08x = 129,361,812,663.71
  5. Step 5: Solve for x
    x = 129,361,812,663.71/409,979.08
  6. Step 6: Final answer
    x = 315,532.72

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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.