Home / 1,313,404.08-1,970,217.90-414,605.40

Finding the Fourth Proportional to 1,313,404.08, 1,970,217.90 and 414,605.40

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Solution

The fourth proportional to 1,313,404.08, 1,970,217.90 and 414,605.40 is: 621,943.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,404.08 : 1,970,217.90 = 414,605.40 : x
  2. Step 2: Convert to fraction form
    1,313,404.08/1,970,217.90 = 414,605.40/x
  3. Step 3: Cross multiply
    1,313,404.08x = 1,970,217.90 × 414,605.40
  4. Step 4: Simplify right side
    1,313,404.08x = 816,862,980,516.66
  5. Step 5: Solve for x
    x = 816,862,980,516.66/1,313,404.08
  6. Step 6: Final answer
    x = 621,943.39

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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.