Home / 786,526.57-1,179,815.97-217,913.38

Finding the Fourth Proportional to 786,526.57, 1,179,815.97 and 217,913.38

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Solution

The fourth proportional to 786,526.57, 1,179,815.97 and 217,913.38 is: 326,877.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,526.57 : 1,179,815.97 = 217,913.38 : x
  2. Step 2: Convert to fraction form
    786,526.57/1,179,815.97 = 217,913.38/x
  3. Step 3: Cross multiply
    786,526.57x = 1,179,815.97 × 217,913.38
  4. Step 4: Simplify right side
    786,526.57x = 257,097,685,800.68
  5. Step 5: Solve for x
    x = 257,097,685,800.68/786,526.57
  6. Step 6: Final answer
    x = 326,877.31

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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.