Home / 739,131.60-1,108,697.40-459,195.60

Finding the Fourth Proportional to 739,131.60, 1,108,697.40 and 459,195.60

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Solution

The fourth proportional to 739,131.60, 1,108,697.40 and 459,195.60 is: 688,793.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,131.60 : 1,108,697.40 = 459,195.60 : x
  2. Step 2: Convert to fraction form
    739,131.60/1,108,697.40 = 459,195.60/x
  3. Step 3: Cross multiply
    739,131.60x = 1,108,697.40 × 459,195.60
  4. Step 4: Simplify right side
    739,131.60x = 509,108,967,811.44
  5. Step 5: Solve for x
    x = 509,108,967,811.44/739,131.60
  6. Step 6: Final answer
    x = 688,793.40

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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.