Home / 646,936.40-970,231.80-197,656.40

Finding the Fourth Proportional to 646,936.40, 970,231.80 and 197,656.40

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Solution

The fourth proportional to 646,936.40, 970,231.80 and 197,656.40 is: 296,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,936.40 : 970,231.80 = 197,656.40 : x
  2. Step 2: Convert to fraction form
    646,936.40/970,231.80 = 197,656.40/x
  3. Step 3: Cross multiply
    646,936.40x = 970,231.80 × 197,656.40
  4. Step 4: Simplify right side
    646,936.40x = 191,772,524,753.52
  5. Step 5: Solve for x
    x = 191,772,524,753.52/646,936.40
  6. Step 6: Final answer
    x = 296,431.80

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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.