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Finding the Fourth Proportional to 633,996.82, 873,445.17 and 442,707.22

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Solution

The fourth proportional to 633,996.82, 873,445.17 and 442,707.22 is: 609,909.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,996.82 : 873,445.17 = 442,707.22 : x
  2. Step 2: Convert to fraction form
    633,996.82/873,445.17 = 442,707.22/x
  3. Step 3: Cross multiply
    633,996.82x = 873,445.17 × 442,707.22
  4. Step 4: Simplify right side
    633,996.82x = 386,680,483,033.13
  5. Step 5: Solve for x
    x = 386,680,483,033.13/633,996.82
  6. Step 6: Final answer
    x = 609,909.18

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Double scale
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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.