Home / 450,185.08-621,446.72-280,503.04

Finding the Fourth Proportional to 450,185.08, 621,446.72 and 280,503.04

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Solution

The fourth proportional to 450,185.08, 621,446.72 and 280,503.04 is: 387,213.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,185.08 : 621,446.72 = 280,503.04 : x
  2. Step 2: Convert to fraction form
    450,185.08/621,446.72 = 280,503.04/x
  3. Step 3: Cross multiply
    450,185.08x = 621,446.72 × 280,503.04
  4. Step 4: Simplify right side
    450,185.08x = 174,317,694,158.03
  5. Step 5: Solve for x
    x = 174,317,694,158.03/450,185.08
  6. Step 6: Final answer
    x = 387,213.40

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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.