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Finding the Fourth Proportional to 479,869.61, 720,247.22 and 243,378.37

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Solution

The fourth proportional to 479,869.61, 720,247.22 and 243,378.37 is: 365,292.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,869.61 : 720,247.22 = 243,378.37 : x
  2. Step 2: Convert to fraction form
    479,869.61/720,247.22 = 243,378.37/x
  3. Step 3: Cross multiply
    479,869.61x = 720,247.22 × 243,378.37
  4. Step 4: Simplify right side
    479,869.61x = 175,292,589,582.50
  5. Step 5: Solve for x
    x = 175,292,589,582.50/479,869.61
  6. Step 6: Final answer
    x = 365,292.13

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1.5x scale

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.