Home / 1,249,138.90-1,874,583.15-800,949.70

Finding the Fourth Proportional to 1,249,138.90, 1,874,583.15 and 800,949.70

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Solution

The fourth proportional to 1,249,138.90, 1,874,583.15 and 800,949.70 is: 1,201,985.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,138.90 : 1,874,583.15 = 800,949.70 : x
  2. Step 2: Convert to fraction form
    1,249,138.90/1,874,583.15 = 800,949.70/x
  3. Step 3: Cross multiply
    1,249,138.90x = 1,874,583.15 × 800,949.70
  4. Step 4: Simplify right side
    1,249,138.90x = 1,501,446,811,617.56
  5. Step 5: Solve for x
    x = 1,501,446,811,617.56/1,249,138.90
  6. Step 6: Final answer
    x = 1,201,985.47

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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.