Home / 646,979.78-970,644.36-197,688.34

Finding the Fourth Proportional to 646,979.78, 970,644.36 and 197,688.34

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Solution

The fourth proportional to 646,979.78, 970,644.36 and 197,688.34 is: 296,585.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,979.78 : 970,644.36 = 197,688.34 : x
  2. Step 2: Convert to fraction form
    646,979.78/970,644.36 = 197,688.34/x
  3. Step 3: Cross multiply
    646,979.78x = 970,644.36 × 197,688.34
  4. Step 4: Simplify right side
    646,979.78x = 191,885,072,258.76
  5. Step 5: Solve for x
    x = 191,885,072,258.76/646,979.78
  6. Step 6: Final answer
    x = 296,585.89

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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.