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Finding the Fourth Proportional to 648,169.20, 894,524.42 and 357,838.46

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Solution

The fourth proportional to 648,169.20, 894,524.42 and 357,838.46 is: 493,845.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,169.20 : 894,524.42 = 357,838.46 : x
  2. Step 2: Convert to fraction form
    648,169.20/894,524.42 = 357,838.46/x
  3. Step 3: Cross multiply
    648,169.20x = 894,524.42 × 357,838.46
  4. Step 4: Simplify right side
    648,169.20x = 320,095,240,885.19
  5. Step 5: Solve for x
    x = 320,095,240,885.19/648,169.20
  6. Step 6: Final answer
    x = 493,845.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.