Home / 979,722.78-1,469,676.93-380,730.13

Finding the Fourth Proportional to 979,722.78, 1,469,676.93 and 380,730.13

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Solution

The fourth proportional to 979,722.78, 1,469,676.93 and 380,730.13 is: 571,131.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,722.78 : 1,469,676.93 = 380,730.13 : x
  2. Step 2: Convert to fraction form
    979,722.78/1,469,676.93 = 380,730.13/x
  3. Step 3: Cross multiply
    979,722.78x = 1,469,676.93 × 380,730.13
  4. Step 4: Simplify right side
    979,722.78x = 559,550,291,781.90
  5. Step 5: Solve for x
    x = 559,550,291,781.90/979,722.78
  6. Step 6: Final answer
    x = 571,131.24

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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.