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Finding the Fourth Proportional to 623,786, 860,824.06 and 337,305.40

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Solution

The fourth proportional to 623,786, 860,824.06 and 337,305.40 is: 465,481.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,786 : 860,824.06 = 337,305.40 : x
  2. Step 2: Convert to fraction form
    623,786/860,824.06 = 337,305.40/x
  3. Step 3: Cross multiply
    623,786x = 860,824.06 × 337,305.40
  4. Step 4: Simplify right side
    623,786x = 290,360,603,887.92
  5. Step 5: Solve for x
    x = 290,360,603,887.92/623,786
  6. Step 6: Final answer
    x = 465,481.12

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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.