Home / 778,331.14-1,167,400.09-209,756.72

Finding the Fourth Proportional to 778,331.14, 1,167,400.09 and 209,756.72

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Solution

The fourth proportional to 778,331.14, 1,167,400.09 and 209,756.72 is: 314,609.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,331.14 : 1,167,400.09 = 209,756.72 : x
  2. Step 2: Convert to fraction form
    778,331.14/1,167,400.09 = 209,756.72/x
  3. Step 3: Cross multiply
    778,331.14x = 1,167,400.09 × 209,756.72
  4. Step 4: Simplify right side
    778,331.14x = 244,870,013,806.11
  5. Step 5: Solve for x
    x = 244,870,013,806.11/778,331.14
  6. Step 6: Final answer
    x = 314,609.04

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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.