Home / 860,298.82-1,290,445.35-220,601.86

Finding the Fourth Proportional to 860,298.82, 1,290,445.35 and 220,601.86

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Solution

The fourth proportional to 860,298.82, 1,290,445.35 and 220,601.86 is: 330,902.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,298.82 : 1,290,445.35 = 220,601.86 : x
  2. Step 2: Convert to fraction form
    860,298.82/1,290,445.35 = 220,601.86/x
  3. Step 3: Cross multiply
    860,298.82x = 1,290,445.35 × 220,601.86
  4. Step 4: Simplify right side
    860,298.82x = 284,674,644,438.35
  5. Step 5: Solve for x
    x = 284,674,644,438.35/860,298.82
  6. Step 6: Final answer
    x = 330,902.05

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.