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Finding the Fourth Proportional to 559,074.40, 838,611.60 and 498,421.60

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Solution

The fourth proportional to 559,074.40, 838,611.60 and 498,421.60 is: 747,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,074.40 : 838,611.60 = 498,421.60 : x
  2. Step 2: Convert to fraction form
    559,074.40/838,611.60 = 498,421.60/x
  3. Step 3: Cross multiply
    559,074.40x = 838,611.60 × 498,421.60
  4. Step 4: Simplify right side
    559,074.40x = 417,982,135,450.56
  5. Step 5: Solve for x
    x = 417,982,135,450.56/559,074.40
  6. Step 6: Final answer
    x = 747,632.40

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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.