Home / 838,774.05-1,257,472.17-333,117.78

Finding the Fourth Proportional to 838,774.05, 1,257,472.17 and 333,117.78

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Solution

The fourth proportional to 838,774.05, 1,257,472.17 and 333,117.78 is: 499,403.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,774.05 : 1,257,472.17 = 333,117.78 : x
  2. Step 2: Convert to fraction form
    838,774.05/1,257,472.17 = 333,117.78/x
  3. Step 3: Cross multiply
    838,774.05x = 1,257,472.17 × 333,117.78
  4. Step 4: Simplify right side
    838,774.05x = 418,886,337,682.18
  5. Step 5: Solve for x
    x = 418,886,337,682.18/838,774.05
  6. Step 6: Final answer
    x = 499,403.07

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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.