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Finding the Fourth Proportional to 525,282.66, 786,661.38 and 299,960.91

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Solution

The fourth proportional to 525,282.66, 786,661.38 and 299,960.91 is: 449,220.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,282.66 : 786,661.38 = 299,960.91 : x
  2. Step 2: Convert to fraction form
    525,282.66/786,661.38 = 299,960.91/x
  3. Step 3: Cross multiply
    525,282.66x = 786,661.38 × 299,960.91
  4. Step 4: Simplify right side
    525,282.66x = 235,967,663,406.66
  5. Step 5: Solve for x
    x = 235,967,663,406.66/525,282.66
  6. Step 6: Final answer
    x = 449,220.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.