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Finding the Fourth Proportional to 648,057, 972,044.22 and 243,169.32

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Solution

The fourth proportional to 648,057, 972,044.22 and 243,169.32 is: 364,738.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,057 : 972,044.22 = 243,169.32 : x
  2. Step 2: Convert to fraction form
    648,057/972,044.22 = 243,169.32/x
  3. Step 3: Cross multiply
    648,057x = 972,044.22 × 243,169.32
  4. Step 4: Simplify right side
    648,057x = 236,371,331,987.33
  5. Step 5: Solve for x
    x = 236,371,331,987.33/648,057
  6. Step 6: Final answer
    x = 364,738.49

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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.