Home / 738,752.10-1,108,128.35-177,786.60

Finding the Fourth Proportional to 738,752.10, 1,108,128.35 and 177,786.60

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Solution

The fourth proportional to 738,752.10, 1,108,128.35 and 177,786.60 is: 266,679.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,752.10 : 1,108,128.35 = 177,786.60 : x
  2. Step 2: Convert to fraction form
    738,752.10/1,108,128.35 = 177,786.60/x
  3. Step 3: Cross multiply
    738,752.10x = 1,108,128.35 × 177,786.60
  4. Step 4: Simplify right side
    738,752.10x = 197,010,366,999.05
  5. Step 5: Solve for x
    x = 197,010,366,999.05/738,752.10
  6. Step 6: Final answer
    x = 266,679.94

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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.