Home / 414,129.90-620,830.35-280,577.10

Finding the Fourth Proportional to 414,129.90, 620,830.35 and 280,577.10

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Solution

The fourth proportional to 414,129.90, 620,830.35 and 280,577.10 is: 420,618.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,129.90 : 620,830.35 = 280,577.10 : x
  2. Step 2: Convert to fraction form
    414,129.90/620,830.35 = 280,577.10/x
  3. Step 3: Cross multiply
    414,129.90x = 620,830.35 × 280,577.10
  4. Step 4: Simplify right side
    414,129.90x = 174,190,779,194.99
  5. Step 5: Solve for x
    x = 174,190,779,194.99/414,129.90
  6. Step 6: Final answer
    x = 420,618.70

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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.