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Finding the Fourth Proportional to 525,480.96, 724,903.92 and 310,517.04

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Solution

The fourth proportional to 525,480.96, 724,903.92 and 310,517.04 is: 428,359.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,480.96 : 724,903.92 = 310,517.04 : x
  2. Step 2: Convert to fraction form
    525,480.96/724,903.92 = 310,517.04/x
  3. Step 3: Cross multiply
    525,480.96x = 724,903.92 × 310,517.04
  4. Step 4: Simplify right side
    525,480.96x = 225,095,019,522.80
  5. Step 5: Solve for x
    x = 225,095,019,522.80/525,480.96
  6. Step 6: Final answer
    x = 428,359.99

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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.