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Finding the Fourth Proportional to 623,670.62, 860,665.23 and 337,190.63

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Solution

The fourth proportional to 623,670.62, 860,665.23 and 337,190.63 is: 465,322.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,670.62 : 860,665.23 = 337,190.63 : x
  2. Step 2: Convert to fraction form
    623,670.62/860,665.23 = 337,190.63/x
  3. Step 3: Cross multiply
    623,670.62x = 860,665.23 × 337,190.63
  4. Step 4: Simplify right side
    623,670.62x = 290,208,246,819.47
  5. Step 5: Solve for x
    x = 290,208,246,819.47/623,670.62
  6. Step 6: Final answer
    x = 465,322.94

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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.