Home / 3,139,748.70-4,709,623.05-1,145,982.30

Finding the Fourth Proportional to 3,139,748.70, 4,709,623.05 and 1,145,982.30

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Solution

The fourth proportional to 3,139,748.70, 4,709,623.05 and 1,145,982.30 is: 1,718,973.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139,748.70 : 4,709,623.05 = 1,145,982.30 : x
  2. Step 2: Convert to fraction form
    3,139,748.70/4,709,623.05 = 1,145,982.30/x
  3. Step 3: Cross multiply
    3,139,748.70x = 4,709,623.05 × 1,145,982.30
  4. Step 4: Simplify right side
    3,139,748.70x = 5,397,144,654,972.01
  5. Step 5: Solve for x
    x = 5,397,144,654,972.01/3,139,748.70
  6. Step 6: Final answer
    x = 1,718,973.45

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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.