Home / 646,942.10-970,423.21-191,579.39

Finding the Fourth Proportional to 646,942.10, 970,423.21 and 191,579.39

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Solution

The fourth proportional to 646,942.10, 970,423.21 and 191,579.39 is: 287,372.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,942.10 : 970,423.21 = 191,579.39 : x
  2. Step 2: Convert to fraction form
    646,942.10/970,423.21 = 191,579.39/x
  3. Step 3: Cross multiply
    646,942.10x = 970,423.21 × 191,579.39
  4. Step 4: Simplify right side
    646,942.10x = 185,913,088,560.75
  5. Step 5: Solve for x
    x = 185,913,088,560.75/646,942.10
  6. Step 6: Final answer
    x = 287,372.07

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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.