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Finding the Fourth Proportional to 607,949.28, 838,970.82 and 349,821.09

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Solution

The fourth proportional to 607,949.28, 838,970.82 and 349,821.09 is: 482,753.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,949.28 : 838,970.82 = 349,821.09 : x
  2. Step 2: Convert to fraction form
    607,949.28/838,970.82 = 349,821.09/x
  3. Step 3: Cross multiply
    607,949.28x = 838,970.82 × 349,821.09
  4. Step 4: Simplify right side
    607,949.28x = 293,489,686,730.59
  5. Step 5: Solve for x
    x = 293,489,686,730.59/607,949.28
  6. Step 6: Final answer
    x = 482,753.57

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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.