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Finding the Fourth Proportional to 654,503.04, 980,471.52 and 339,166.80

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Solution

The fourth proportional to 654,503.04, 980,471.52 and 339,166.80 is: 508,085.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,503.04 : 980,471.52 = 339,166.80 : x
  2. Step 2: Convert to fraction form
    654,503.04/980,471.52 = 339,166.80/x
  3. Step 3: Cross multiply
    654,503.04x = 980,471.52 × 339,166.80
  4. Step 4: Simplify right side
    654,503.04x = 332,543,387,929.54
  5. Step 5: Solve for x
    x = 332,543,387,929.54/654,503.04
  6. Step 6: Final answer
    x = 508,085.32

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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.