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Finding the Fourth Proportional to 654,773.48, 980,898.78 and 548,328.68

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Solution

The fourth proportional to 654,773.48, 980,898.78 and 548,328.68 is: 821,436.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,773.48 : 980,898.78 = 548,328.68 : x
  2. Step 2: Convert to fraction form
    654,773.48/980,898.78 = 548,328.68/x
  3. Step 3: Cross multiply
    654,773.48x = 980,898.78 × 548,328.68
  4. Step 4: Simplify right side
    654,773.48x = 537,854,933,251.01
  5. Step 5: Solve for x
    x = 537,854,933,251.01/654,773.48
  6. Step 6: Final answer
    x = 821,436.65

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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.