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Finding the Fourth Proportional to 633,997.32, 873,445.86 and 442,707.72

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Solution

The fourth proportional to 633,997.32, 873,445.86 and 442,707.72 is: 609,909.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,997.32 : 873,445.86 = 442,707.72 : x
  2. Step 2: Convert to fraction form
    633,997.32/873,445.86 = 442,707.72/x
  3. Step 3: Cross multiply
    633,997.32x = 873,445.86 × 442,707.72
  4. Step 4: Simplify right side
    633,997.32x = 386,681,225,224.04
  5. Step 5: Solve for x
    x = 386,681,225,224.04/633,997.32
  6. Step 6: Final answer
    x = 609,909.87

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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.