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Finding the Fourth Proportional to 558,491.70, 837,315.63 and 278,207.22

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Solution

The fourth proportional to 558,491.70, 837,315.63 and 278,207.22 is: 417,100.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,491.70 : 837,315.63 = 278,207.22 : x
  2. Step 2: Convert to fraction form
    558,491.70/837,315.63 = 278,207.22/x
  3. Step 3: Cross multiply
    558,491.70x = 837,315.63 × 278,207.22
  4. Step 4: Simplify right side
    558,491.70x = 232,947,253,684.85
  5. Step 5: Solve for x
    x = 232,947,253,684.85/558,491.70
  6. Step 6: Final answer
    x = 417,100.65

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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.