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Finding the Fourth Proportional to 607,948.78, 838,970.13 and 349,820.59

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Solution

The fourth proportional to 607,948.78, 838,970.13 and 349,820.59 is: 482,752.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,948.78 : 838,970.13 = 349,820.59 : x
  2. Step 2: Convert to fraction form
    607,948.78/838,970.13 = 349,820.59/x
  3. Step 3: Cross multiply
    607,948.78x = 838,970.13 × 349,820.59
  4. Step 4: Simplify right side
    607,948.78x = 293,489,024,119.87
  5. Step 5: Solve for x
    x = 293,489,024,119.87/607,948.78
  6. Step 6: Final answer
    x = 482,752.88

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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.