Home / 628,485.45-867,328.01-342,023.68

Finding the Fourth Proportional to 628,485.45, 867,328.01 and 342,023.68

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Solution

The fourth proportional to 628,485.45, 867,328.01 and 342,023.68 is: 472,002.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,485.45 : 867,328.01 = 342,023.68 : x
  2. Step 2: Convert to fraction form
    628,485.45/867,328.01 = 342,023.68/x
  3. Step 3: Cross multiply
    628,485.45x = 867,328.01 × 342,023.68
  4. Step 4: Simplify right side
    628,485.45x = 296,646,717,747.28
  5. Step 5: Solve for x
    x = 296,646,717,747.28/628,485.45
  6. Step 6: Final answer
    x = 472,002.52

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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.