Home / 1,775,912.30-2,663,868.45-778,640.30

Finding the Fourth Proportional to 1,775,912.30, 2,663,868.45 and 778,640.30

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Solution

The fourth proportional to 1,775,912.30, 2,663,868.45 and 778,640.30 is: 1,167,960.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775,912.30 : 2,663,868.45 = 778,640.30 : x
  2. Step 2: Convert to fraction form
    1,775,912.30/2,663,868.45 = 778,640.30/x
  3. Step 3: Cross multiply
    1,775,912.30x = 2,663,868.45 × 778,640.30
  4. Step 4: Simplify right side
    1,775,912.30x = 2,074,195,329,068.54
  5. Step 5: Solve for x
    x = 2,074,195,329,068.54/1,775,912.30
  6. Step 6: Final answer
    x = 1,167,960.45

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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.