Home / 808,147.26-1,212,968.88-409,068.36

Finding the Fourth Proportional to 808,147.26, 1,212,968.88 and 409,068.36

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Solution

The fourth proportional to 808,147.26, 1,212,968.88 and 409,068.36 is: 613,981.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,147.26 : 1,212,968.88 = 409,068.36 : x
  2. Step 2: Convert to fraction form
    808,147.26/1,212,968.88 = 409,068.36/x
  3. Step 3: Cross multiply
    808,147.26x = 1,212,968.88 × 409,068.36
  4. Step 4: Simplify right side
    808,147.26x = 496,187,190,472.64
  5. Step 5: Solve for x
    x = 496,187,190,472.64/808,147.26
  6. Step 6: Final answer
    x = 613,981.16

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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.