Home / 553,610.05-763,981.91-298,961.24

Finding the Fourth Proportional to 553,610.05, 763,981.91 and 298,961.24

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Solution

The fourth proportional to 553,610.05, 763,981.91 and 298,961.24 is: 412,566.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,610.05 : 763,981.91 = 298,961.24 : x
  2. Step 2: Convert to fraction form
    553,610.05/763,981.91 = 298,961.24/x
  3. Step 3: Cross multiply
    553,610.05x = 763,981.91 × 298,961.24
  4. Step 4: Simplify right side
    553,610.05x = 228,400,979,151.17
  5. Step 5: Solve for x
    x = 228,400,979,151.17/553,610.05
  6. Step 6: Final answer
    x = 412,566.53

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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.