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Finding the Fourth Proportional to 525,510.86, 724,974.63 and 321,571.58

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Solution

The fourth proportional to 525,510.86, 724,974.63 and 321,571.58 is: 443,627.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,510.86 : 724,974.63 = 321,571.58 : x
  2. Step 2: Convert to fraction form
    525,510.86/724,974.63 = 321,571.58/x
  3. Step 3: Cross multiply
    525,510.86x = 724,974.63 × 321,571.58
  4. Step 4: Simplify right side
    525,510.86x = 233,131,237,229.02
  5. Step 5: Solve for x
    x = 233,131,237,229.02/525,510.86
  6. Step 6: Final answer
    x = 443,627.82

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1.5x scale

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.