Home / 739,404.60-1,109,106.90-490,086.60

Finding the Fourth Proportional to 739,404.60, 1,109,106.90 and 490,086.60

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Solution

The fourth proportional to 739,404.60, 1,109,106.90 and 490,086.60 is: 735,129.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,404.60 : 1,109,106.90 = 490,086.60 : x
  2. Step 2: Convert to fraction form
    739,404.60/1,109,106.90 = 490,086.60/x
  3. Step 3: Cross multiply
    739,404.60x = 1,109,106.90 × 490,086.60
  4. Step 4: Simplify right side
    739,404.60x = 543,558,429,657.54
  5. Step 5: Solve for x
    x = 543,558,429,657.54/739,404.60
  6. Step 6: Final answer
    x = 735,129.90

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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.