Home / 1,107,785.34-1,661,678.02-266,337.09

Finding the Fourth Proportional to 1,107,785.34, 1,661,678.02 and 266,337.09

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Solution

The fourth proportional to 1,107,785.34, 1,661,678.02 and 266,337.09 is: 399,505.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,785.34 : 1,661,678.02 = 266,337.09 : x
  2. Step 2: Convert to fraction form
    1,107,785.34/1,661,678.02 = 266,337.09/x
  3. Step 3: Cross multiply
    1,107,785.34x = 1,661,678.02 × 266,337.09
  4. Step 4: Simplify right side
    1,107,785.34x = 442,566,488,363.76
  5. Step 5: Solve for x
    x = 442,566,488,363.76/1,107,785.34
  6. Step 6: Final answer
    x = 399,505.64

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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.