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Finding the Fourth Proportional to 453,485.70, 680,228.55 and 254,420.10

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Solution

The fourth proportional to 453,485.70, 680,228.55 and 254,420.10 is: 381,630.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,485.70 : 680,228.55 = 254,420.10 : x
  2. Step 2: Convert to fraction form
    453,485.70/680,228.55 = 254,420.10/x
  3. Step 3: Cross multiply
    453,485.70x = 680,228.55 × 254,420.10
  4. Step 4: Simplify right side
    453,485.70x = 173,063,815,713.86
  5. Step 5: Solve for x
    x = 173,063,815,713.86/453,485.70
  6. Step 6: Final answer
    x = 381,630.15

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Similar ratio
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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.