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Finding the Fourth Proportional to 607,690.80, 838,634.04 and 381,461.04

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Solution

The fourth proportional to 607,690.80, 838,634.04 and 381,461.04 is: 526,429.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,690.80 : 838,634.04 = 381,461.04 : x
  2. Step 2: Convert to fraction form
    607,690.80/838,634.04 = 381,461.04/x
  3. Step 3: Cross multiply
    607,690.80x = 838,634.04 × 381,461.04
  4. Step 4: Simplify right side
    607,690.80x = 319,906,213,077.80
  5. Step 5: Solve for x
    x = 319,906,213,077.80/607,690.80
  6. Step 6: Final answer
    x = 526,429.25

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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.