Home / 628,488.20-867,331.80-342,026.44

Finding the Fourth Proportional to 628,488.20, 867,331.80 and 342,026.44

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Solution

The fourth proportional to 628,488.20, 867,331.80 and 342,026.44 is: 472,006.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,488.20 : 867,331.80 = 342,026.44 : x
  2. Step 2: Convert to fraction form
    628,488.20/867,331.80 = 342,026.44/x
  3. Step 3: Cross multiply
    628,488.20x = 867,331.80 × 342,026.44
  4. Step 4: Simplify right side
    628,488.20x = 296,650,407,852.79
  5. Step 5: Solve for x
    x = 296,650,407,852.79/628,488.20
  6. Step 6: Final answer
    x = 472,006.33

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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.