Home / 679,568.40-1,019,935.80-301,071.60

Finding the Fourth Proportional to 679,568.40, 1,019,935.80 and 301,071.60

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Solution

The fourth proportional to 679,568.40, 1,019,935.80 and 301,071.60 is: 451,865.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,568.40 : 1,019,935.80 = 301,071.60 : x
  2. Step 2: Convert to fraction form
    679,568.40/1,019,935.80 = 301,071.60/x
  3. Step 3: Cross multiply
    679,568.40x = 1,019,935.80 × 301,071.60
  4. Step 4: Simplify right side
    679,568.40x = 307,073,703,203.28
  5. Step 5: Solve for x
    x = 307,073,703,203.28/679,568.40
  6. Step 6: Final answer
    x = 451,865.78

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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.