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Finding the Fourth Proportional to 735,804.56, 1,015,419.28 and 449,284.88

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Solution

The fourth proportional to 735,804.56, 1,015,419.28 and 449,284.88 is: 620,018.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,804.56 : 1,015,419.28 = 449,284.88 : x
  2. Step 2: Convert to fraction form
    735,804.56/1,015,419.28 = 449,284.88/x
  3. Step 3: Cross multiply
    735,804.56x = 1,015,419.28 × 449,284.88
  4. Step 4: Simplify right side
    735,804.56x = 456,212,529,364.49
  5. Step 5: Solve for x
    x = 456,212,529,364.49/735,804.56
  6. Step 6: Final answer
    x = 620,018.62

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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.