Home / 724,279.80-1,085,123.70-349,476.60

Finding the Fourth Proportional to 724,279.80, 1,085,123.70 and 349,476.60

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Solution

The fourth proportional to 724,279.80, 1,085,123.70 and 349,476.60 is: 523,589.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,279.80 : 1,085,123.70 = 349,476.60 : x
  2. Step 2: Convert to fraction form
    724,279.80/1,085,123.70 = 349,476.60/x
  3. Step 3: Cross multiply
    724,279.80x = 1,085,123.70 × 349,476.60
  4. Step 4: Simplify right side
    724,279.80x = 379,225,341,255.42
  5. Step 5: Solve for x
    x = 379,225,341,255.42/724,279.80
  6. Step 6: Final answer
    x = 523,589.56

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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.