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Finding the Fourth Proportional to 528,771.37, 729,627.49 and 302,373.13

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Solution

The fourth proportional to 528,771.37, 729,627.49 and 302,373.13 is: 417,230.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,771.37 : 729,627.49 = 302,373.13 : x
  2. Step 2: Convert to fraction form
    528,771.37/729,627.49 = 302,373.13/x
  3. Step 3: Cross multiply
    528,771.37x = 729,627.49 × 302,373.13
  4. Step 4: Simplify right side
    528,771.37x = 220,619,745,305.34
  5. Step 5: Solve for x
    x = 220,619,745,305.34/528,771.37
  6. Step 6: Final answer
    x = 417,230.88

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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.