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Finding the Fourth Proportional to 607,308.60, 838,077.12 and 335,388

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Solution

The fourth proportional to 607,308.60, 838,077.12 and 335,388 is: 462,830.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,308.60 : 838,077.12 = 335,388 : x
  2. Step 2: Convert to fraction form
    607,308.60/838,077.12 = 335,388/x
  3. Step 3: Cross multiply
    607,308.60x = 838,077.12 × 335,388
  4. Step 4: Simplify right side
    607,308.60x = 281,081,009,122.56
  5. Step 5: Solve for x
    x = 281,081,009,122.56/607,308.60
  6. Step 6: Final answer
    x = 462,830.61

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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.