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Finding the Fourth Proportional to 668,508.72, 922,899.48 and 523,005.22

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Solution

The fourth proportional to 668,508.72, 922,899.48 and 523,005.22 is: 722,026.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,508.72 : 922,899.48 = 523,005.22 : x
  2. Step 2: Convert to fraction form
    668,508.72/922,899.48 = 523,005.22/x
  3. Step 3: Cross multiply
    668,508.72x = 922,899.48 × 523,005.22
  4. Step 4: Simplify right side
    668,508.72x = 482,681,241,241.91
  5. Step 5: Solve for x
    x = 482,681,241,241.91/668,508.72
  6. Step 6: Final answer
    x = 722,026.84

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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.