Home / 407,739.20-562,647.88-226,433.60

Finding the Fourth Proportional to 407,739.20, 562,647.88 and 226,433.60

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Solution

The fourth proportional to 407,739.20, 562,647.88 and 226,433.60 is: 312,460.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,739.20 : 562,647.88 = 226,433.60 : x
  2. Step 2: Convert to fraction form
    407,739.20/562,647.88 = 226,433.60/x
  3. Step 3: Cross multiply
    407,739.20x = 562,647.88 × 226,433.60
  4. Step 4: Simplify right side
    407,739.20x = 127,402,385,000.77
  5. Step 5: Solve for x
    x = 127,402,385,000.77/407,739.20
  6. Step 6: Final answer
    x = 312,460.48

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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.