Home / 628,752.78-867,544.29-374,054.22

Finding the Fourth Proportional to 628,752.78, 867,544.29 and 374,054.22

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Solution

The fourth proportional to 628,752.78, 867,544.29 and 374,054.22 is: 516,114.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,752.78 : 867,544.29 = 374,054.22 : x
  2. Step 2: Convert to fraction form
    628,752.78/867,544.29 = 374,054.22/x
  3. Step 3: Cross multiply
    628,752.78x = 867,544.29 × 374,054.22
  4. Step 4: Simplify right side
    628,752.78x = 324,508,602,711.40
  5. Step 5: Solve for x
    x = 324,508,602,711.40/628,752.78
  6. Step 6: Final answer
    x = 516,114.78

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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.