Home / 890,259.09-1,228,617.81-502,940.16

Finding the Fourth Proportional to 890,259.09, 1,228,617.81 and 502,940.16

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Solution

The fourth proportional to 890,259.09, 1,228,617.81 and 502,940.16 is: 694,091.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,259.09 : 1,228,617.81 = 502,940.16 : x
  2. Step 2: Convert to fraction form
    890,259.09/1,228,617.81 = 502,940.16/x
  3. Step 3: Cross multiply
    890,259.09x = 1,228,617.81 × 502,940.16
  4. Step 4: Simplify right side
    890,259.09x = 617,921,237,940.25
  5. Step 5: Solve for x
    x = 617,921,237,940.25/890,259.09
  6. Step 6: Final answer
    x = 694,091.47

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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.