Home / 450,201.45-620,670.03-288,776.28

Finding the Fourth Proportional to 450,201.45, 620,670.03 and 288,776.28

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Solution

The fourth proportional to 450,201.45, 620,670.03 and 288,776.28 is: 398,121.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,201.45 : 620,670.03 = 288,776.28 : x
  2. Step 2: Convert to fraction form
    450,201.45/620,670.03 = 288,776.28/x
  3. Step 3: Cross multiply
    450,201.45x = 620,670.03 × 288,776.28
  4. Step 4: Simplify right side
    450,201.45x = 179,234,782,370.89
  5. Step 5: Solve for x
    x = 179,234,782,370.89/450,201.45
  6. Step 6: Final answer
    x = 398,121.29

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1.5x scale

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.