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Finding the Fourth Proportional to 623,699.49, 860,704.56 and 337,218.90

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Solution

The fourth proportional to 623,699.49, 860,704.56 and 337,218.90 is: 465,361.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,699.49 : 860,704.56 = 337,218.90 : x
  2. Step 2: Convert to fraction form
    623,699.49/860,704.56 = 337,218.90/x
  3. Step 3: Cross multiply
    623,699.49x = 860,704.56 × 337,218.90
  4. Step 4: Simplify right side
    623,699.49x = 290,245,844,948.18
  5. Step 5: Solve for x
    x = 290,245,844,948.18/623,699.49
  6. Step 6: Final answer
    x = 465,361.68

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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.