Home / 2,078,477.10-3,117,715.65-1,277,160.30

Finding the Fourth Proportional to 2,078,477.10, 3,117,715.65 and 1,277,160.30

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Solution

The fourth proportional to 2,078,477.10, 3,117,715.65 and 1,277,160.30 is: 1,915,740.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,477.10 : 3,117,715.65 = 1,277,160.30 : x
  2. Step 2: Convert to fraction form
    2,078,477.10/3,117,715.65 = 1,277,160.30/x
  3. Step 3: Cross multiply
    2,078,477.10x = 3,117,715.65 × 1,277,160.30
  4. Step 4: Simplify right side
    2,078,477.10x = 3,981,822,654,868.70
  5. Step 5: Solve for x
    x = 3,981,822,654,868.70/2,078,477.10
  6. Step 6: Final answer
    x = 1,915,740.45

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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.