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Finding the Fourth Proportional to 438,650.39, 656,478.47 and 367,653.23

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Solution

The fourth proportional to 438,650.39, 656,478.47 and 367,653.23 is: 550,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,650.39 : 656,478.47 = 367,653.23 : x
  2. Step 2: Convert to fraction form
    438,650.39/656,478.47 = 367,653.23/x
  3. Step 3: Cross multiply
    438,650.39x = 656,478.47 × 367,653.23
  4. Step 4: Simplify right side
    438,650.39x = 241,356,430,019.49
  5. Step 5: Solve for x
    x = 241,356,430,019.49/438,650.39
  6. Step 6: Final answer
    x = 550,225.05

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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.