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Finding the Fourth Proportional to 438,653.38, 656,483.02 and 367,656.16

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Solution

The fourth proportional to 438,653.38, 656,483.02 and 367,656.16 is: 550,229.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,653.38 : 656,483.02 = 367,656.16 : x
  2. Step 2: Convert to fraction form
    438,653.38/656,483.02 = 367,656.16/x
  3. Step 3: Cross multiply
    438,653.38x = 656,483.02 × 367,656.16
  4. Step 4: Simplify right side
    438,653.38x = 241,360,026,238.40
  5. Step 5: Solve for x
    x = 241,360,026,238.40/438,653.38
  6. Step 6: Final answer
    x = 550,229.49

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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.