Home / 1,313,434.08-1,970,262.90-414,635.40

Finding the Fourth Proportional to 1,313,434.08, 1,970,262.90 and 414,635.40

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Solution

The fourth proportional to 1,313,434.08, 1,970,262.90 and 414,635.40 is: 621,988.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,434.08 : 1,970,262.90 = 414,635.40 : x
  2. Step 2: Convert to fraction form
    1,313,434.08/1,970,262.90 = 414,635.40/x
  3. Step 3: Cross multiply
    1,313,434.08x = 1,970,262.90 × 414,635.40
  4. Step 4: Simplify right side
    1,313,434.08x = 816,940,745,646.66
  5. Step 5: Solve for x
    x = 816,940,745,646.66/1,313,434.08
  6. Step 6: Final answer
    x = 621,988.39

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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.