Home / 840,151.20-1,260,226.80-479,952.30

Finding the Fourth Proportional to 840,151.20, 1,260,226.80 and 479,952.30

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Solution

The fourth proportional to 840,151.20, 1,260,226.80 and 479,952.30 is: 719,928.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,151.20 : 1,260,226.80 = 479,952.30 : x
  2. Step 2: Convert to fraction form
    840,151.20/1,260,226.80 = 479,952.30/x
  3. Step 3: Cross multiply
    840,151.20x = 1,260,226.80 × 479,952.30
  4. Step 4: Simplify right side
    840,151.20x = 604,848,751,181.64
  5. Step 5: Solve for x
    x = 604,848,751,181.64/840,151.20
  6. Step 6: Final answer
    x = 719,928.45

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Double scale
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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.