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Finding the Fourth Proportional to 498,360.40, 747,540.60 and 340,896.40

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Solution

The fourth proportional to 498,360.40, 747,540.60 and 340,896.40 is: 511,344.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,360.40 : 747,540.60 = 340,896.40 : x
  2. Step 2: Convert to fraction form
    498,360.40/747,540.60 = 340,896.40/x
  3. Step 3: Cross multiply
    498,360.40x = 747,540.60 × 340,896.40
  4. Step 4: Simplify right side
    498,360.40x = 254,833,899,393.84
  5. Step 5: Solve for x
    x = 254,833,899,393.84/498,360.40
  6. Step 6: Final answer
    x = 511,344.60

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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.