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Finding the Fourth Proportional to 633,999.82, 873,449.31 and 442,710.22

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Solution

The fourth proportional to 633,999.82, 873,449.31 and 442,710.22 is: 609,913.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,999.82 : 873,449.31 = 442,710.22 : x
  2. Step 2: Convert to fraction form
    633,999.82/873,449.31 = 442,710.22/x
  3. Step 3: Cross multiply
    633,999.82x = 873,449.31 × 442,710.22
  4. Step 4: Simplify right side
    633,999.82x = 386,684,936,188.95
  5. Step 5: Solve for x
    x = 386,684,936,188.95/633,999.82
  6. Step 6: Final answer
    x = 609,913.32

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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.