Home / 552,928.56-763,042.80-311,214.72

Finding the Fourth Proportional to 552,928.56, 763,042.80 and 311,214.72

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Solution

The fourth proportional to 552,928.56, 763,042.80 and 311,214.72 is: 429,477.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,928.56 : 763,042.80 = 311,214.72 : x
  2. Step 2: Convert to fraction form
    552,928.56/763,042.80 = 311,214.72/x
  3. Step 3: Cross multiply
    552,928.56x = 763,042.80 × 311,214.72
  4. Step 4: Simplify right side
    552,928.56x = 237,470,151,350.02
  5. Step 5: Solve for x
    x = 237,470,151,350.02/552,928.56
  6. Step 6: Final answer
    x = 429,477.09

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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.