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Finding the Fourth Proportional to 525,196.28, 724,859.16 and 304,400.72

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Solution

The fourth proportional to 525,196.28, 724,859.16 and 304,400.72 is: 420,124.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,196.28 : 724,859.16 = 304,400.72 : x
  2. Step 2: Convert to fraction form
    525,196.28/724,859.16 = 304,400.72/x
  3. Step 3: Cross multiply
    525,196.28x = 724,859.16 × 304,400.72
  4. Step 4: Simplify right side
    525,196.28x = 220,647,650,202.60
  5. Step 5: Solve for x
    x = 220,647,650,202.60/525,196.28
  6. Step 6: Final answer
    x = 420,124.17

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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.