Home / 525,016.92-724,136.60-395,960.80

Finding the Fourth Proportional to 525,016.92, 724,136.60 and 395,960.80

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Solution

The fourth proportional to 525,016.92, 724,136.60 and 395,960.80 is: 546,134.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,016.92 : 724,136.60 = 395,960.80 : x
  2. Step 2: Convert to fraction form
    525,016.92/724,136.60 = 395,960.80/x
  3. Step 3: Cross multiply
    525,016.92x = 724,136.60 × 395,960.80
  4. Step 4: Simplify right side
    525,016.92x = 286,729,707,445.28
  5. Step 5: Solve for x
    x = 286,729,707,445.28/525,016.92
  6. Step 6: Final answer
    x = 546,134.22

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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.