Home / 628,465.03-867,130.51-370,352.53

Finding the Fourth Proportional to 628,465.03, 867,130.51 and 370,352.53

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Solution

The fourth proportional to 628,465.03, 867,130.51 and 370,352.53 is: 510,997.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,465.03 : 867,130.51 = 370,352.53 : x
  2. Step 2: Convert to fraction form
    628,465.03/867,130.51 = 370,352.53/x
  3. Step 3: Cross multiply
    628,465.03x = 867,130.51 × 370,352.53
  4. Step 4: Simplify right side
    628,465.03x = 321,143,978,218.69
  5. Step 5: Solve for x
    x = 321,143,978,218.69/628,465.03
  6. Step 6: Final answer
    x = 510,997.37

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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.