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Finding the Fourth Proportional to 525,282.52, 786,661.20 and 299,960.77

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Solution

The fourth proportional to 525,282.52, 786,661.20 and 299,960.77 is: 449,220.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,282.52 : 786,661.20 = 299,960.77 : x
  2. Step 2: Convert to fraction form
    525,282.52/786,661.20 = 299,960.77/x
  3. Step 3: Cross multiply
    525,282.52x = 786,661.20 × 299,960.77
  4. Step 4: Simplify right side
    525,282.52x = 235,967,499,281.12
  5. Step 5: Solve for x
    x = 235,967,499,281.12/525,282.52
  6. Step 6: Final answer
    x = 449,220.16

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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.