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Finding the Fourth Proportional to 607,949.78, 838,971.51 and 349,821.59

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Solution

The fourth proportional to 607,949.78, 838,971.51 and 349,821.59 is: 482,754.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,949.78 : 838,971.51 = 349,821.59 : x
  2. Step 2: Convert to fraction form
    607,949.78/838,971.51 = 349,821.59/x
  3. Step 3: Cross multiply
    607,949.78x = 838,971.51 × 349,821.59
  4. Step 4: Simplify right side
    607,949.78x = 293,490,345,843.79
  5. Step 5: Solve for x
    x = 293,490,345,843.79/607,949.78
  6. Step 6: Final answer
    x = 482,754.26

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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.