Home / 2,358,138.48-3,535,878.92-820,428.72

Finding the Fourth Proportional to 2,358,138.48, 3,535,878.92 and 820,428.72

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Solution

The fourth proportional to 2,358,138.48, 3,535,878.92 and 820,428.72 is: 1,230,180.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,358,138.48 : 3,535,878.92 = 820,428.72 : x
  2. Step 2: Convert to fraction form
    2,358,138.48/3,535,878.92 = 820,428.72/x
  3. Step 3: Cross multiply
    2,358,138.48x = 3,535,878.92 × 820,428.72
  4. Step 4: Simplify right side
    2,358,138.48x = 2,900,936,616,410.58
  5. Step 5: Solve for x
    x = 2,900,936,616,410.58/2,358,138.48
  6. Step 6: Final answer
    x = 1,230,180.77

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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.