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Finding the Fourth Proportional to 439,820, 606,951.76 and 248,829.28

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Solution

The fourth proportional to 439,820, 606,951.76 and 248,829.28 is: 343,384.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,820 : 606,951.76 = 248,829.28 : x
  2. Step 2: Convert to fraction form
    439,820/606,951.76 = 248,829.28/x
  3. Step 3: Cross multiply
    439,820x = 606,951.76 × 248,829.28
  4. Step 4: Simplify right side
    439,820x = 151,027,369,435.53
  5. Step 5: Solve for x
    x = 151,027,369,435.53/439,820
  6. Step 6: Final answer
    x = 343,384.50

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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.