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Finding the Fourth Proportional to 623,902.45, 860,985.96 and 337,422.54

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Solution

The fourth proportional to 623,902.45, 860,985.96 and 337,422.54 is: 465,643.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,902.45 : 860,985.96 = 337,422.54 : x
  2. Step 2: Convert to fraction form
    623,902.45/860,985.96 = 337,422.54/x
  3. Step 3: Cross multiply
    623,902.45x = 860,985.96 × 337,422.54
  4. Step 4: Simplify right side
    623,902.45x = 290,516,071,490.90
  5. Step 5: Solve for x
    x = 290,516,071,490.90/623,902.45
  6. Step 6: Final answer
    x = 465,643.42

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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.