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Finding the Fourth Proportional to 525,265.28, 724,781.76 and 298,914.56

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Solution

The fourth proportional to 525,265.28, 724,781.76 and 298,914.56 is: 412,454.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,265.28 : 724,781.76 = 298,914.56 : x
  2. Step 2: Convert to fraction form
    525,265.28/724,781.76 = 298,914.56/x
  3. Step 3: Cross multiply
    525,265.28x = 724,781.76 × 298,914.56
  4. Step 4: Simplify right side
    525,265.28x = 216,647,820,886.43
  5. Step 5: Solve for x
    x = 216,647,820,886.43/525,265.28
  6. Step 6: Final answer
    x = 412,454.10

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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.