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Finding the Fourth Proportional to 731,602.96, 1,009,770 and 445,215.32

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Solution

The fourth proportional to 731,602.96, 1,009,770 and 445,215.32 is: 614,493.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,602.96 : 1,009,770 = 445,215.32 : x
  2. Step 2: Convert to fraction form
    731,602.96/1,009,770 = 445,215.32/x
  3. Step 3: Cross multiply
    731,602.96x = 1,009,770 × 445,215.32
  4. Step 4: Simplify right side
    731,602.96x = 449,565,073,676.40
  5. Step 5: Solve for x
    x = 449,565,073,676.40/731,602.96
  6. Step 6: Final answer
    x = 614,493.24

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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.