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Finding the Fourth Proportional to 525,360.28, 725,025.18 and 299,078.68

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Solution

The fourth proportional to 525,360.28, 725,025.18 and 299,078.68 is: 412,744.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,360.28 : 725,025.18 = 299,078.68 : x
  2. Step 2: Convert to fraction form
    525,360.28/725,025.18 = 299,078.68/x
  3. Step 3: Cross multiply
    525,360.28x = 725,025.18 × 299,078.68
  4. Step 4: Simplify right side
    525,360.28x = 216,839,573,801.16
  5. Step 5: Solve for x
    x = 216,839,573,801.16/525,360.28
  6. Step 6: Final answer
    x = 412,744.51

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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.