Home / 628,731.96-942,568.84-273,478.40

Finding the Fourth Proportional to 628,731.96, 942,568.84 and 273,478.40

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Solution

The fourth proportional to 628,731.96, 942,568.84 and 273,478.40 is: 409,987.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,731.96 : 942,568.84 = 273,478.40 : x
  2. Step 2: Convert to fraction form
    628,731.96/942,568.84 = 273,478.40/x
  3. Step 3: Cross multiply
    628,731.96x = 942,568.84 × 273,478.40
  4. Step 4: Simplify right side
    628,731.96x = 257,772,218,253.06
  5. Step 5: Solve for x
    x = 257,772,218,253.06/628,731.96
  6. Step 6: Final answer
    x = 409,987.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.