Home / 628,387.62-867,365.37-427,300.26

Finding the Fourth Proportional to 628,387.62, 867,365.37 and 427,300.26

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Solution

The fourth proportional to 628,387.62, 867,365.37 and 427,300.26 is: 589,803.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,387.62 : 867,365.37 = 427,300.26 : x
  2. Step 2: Convert to fraction form
    628,387.62/867,365.37 = 427,300.26/x
  3. Step 3: Cross multiply
    628,387.62x = 867,365.37 × 427,300.26
  4. Step 4: Simplify right side
    628,387.62x = 370,625,448,116.00
  5. Step 5: Solve for x
    x = 370,625,448,116.00/628,387.62
  6. Step 6: Final answer
    x = 589,803.87

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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.