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Finding the Fourth Proportional to 525,174.48, 724,750.02 and 310,313.97

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Solution

The fourth proportional to 525,174.48, 724,750.02 and 310,313.97 is: 428,238.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,174.48 : 724,750.02 = 310,313.97 : x
  2. Step 2: Convert to fraction form
    525,174.48/724,750.02 = 310,313.97/x
  3. Step 3: Cross multiply
    525,174.48x = 724,750.02 × 310,313.97
  4. Step 4: Simplify right side
    525,174.48x = 224,900,055,963.78
  5. Step 5: Solve for x
    x = 224,900,055,963.78/525,174.48
  6. Step 6: Final answer
    x = 428,238.74

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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.