Home / 628,485.20-867,327.66-342,023.43

Finding the Fourth Proportional to 628,485.20, 867,327.66 and 342,023.43

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Solution

The fourth proportional to 628,485.20, 867,327.66 and 342,023.43 is: 472,002.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,485.20 : 867,327.66 = 342,023.43 : x
  2. Step 2: Convert to fraction form
    628,485.20/867,327.66 = 342,023.43/x
  3. Step 3: Cross multiply
    628,485.20x = 867,327.66 × 342,023.43
  4. Step 4: Simplify right side
    628,485.20x = 296,646,381,207.07
  5. Step 5: Solve for x
    x = 296,646,381,207.07/628,485.20
  6. Step 6: Final answer
    x = 472,002.18

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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.