Home / 808,048.31-1,115,207.61-463,991.90

Finding the Fourth Proportional to 808,048.31, 1,115,207.61 and 463,991.90

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Solution

The fourth proportional to 808,048.31, 1,115,207.61 and 463,991.90 is: 640,366.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,048.31 : 1,115,207.61 = 463,991.90 : x
  2. Step 2: Convert to fraction form
    808,048.31/1,115,207.61 = 463,991.90/x
  3. Step 3: Cross multiply
    808,048.31x = 1,115,207.61 × 463,991.90
  4. Step 4: Simplify right side
    808,048.31x = 517,447,297,858.36
  5. Step 5: Solve for x
    x = 517,447,297,858.36/808,048.31
  6. Step 6: Final answer
    x = 640,366.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.