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Finding the Fourth Proportional to 607,258, 838,016.04 and 338,986

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Solution

The fourth proportional to 607,258, 838,016.04 and 338,986 is: 467,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,258 : 838,016.04 = 338,986 : x
  2. Step 2: Convert to fraction form
    607,258/838,016.04 = 338,986/x
  3. Step 3: Cross multiply
    607,258x = 838,016.04 × 338,986
  4. Step 4: Simplify right side
    607,258x = 284,075,705,335.44
  5. Step 5: Solve for x
    x = 284,075,705,335.44/607,258
  6. Step 6: Final answer
    x = 467,800.68

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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.