Home / 450,181.08-621,441.18-280,499.04

Finding the Fourth Proportional to 450,181.08, 621,441.18 and 280,499.04

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Solution

The fourth proportional to 450,181.08, 621,441.18 and 280,499.04 is: 387,207.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,181.08 : 621,441.18 = 280,499.04 : x
  2. Step 2: Convert to fraction form
    450,181.08/621,441.18 = 280,499.04/x
  3. Step 3: Cross multiply
    450,181.08x = 621,441.18 × 280,499.04
  4. Step 4: Simplify right side
    450,181.08x = 174,313,654,406.47
  5. Step 5: Solve for x
    x = 174,313,654,406.47/450,181.08
  6. Step 6: Final answer
    x = 387,207.86

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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.