Home / 1,115,778.70-1,673,668.05-274,330.45

Finding the Fourth Proportional to 1,115,778.70, 1,673,668.05 and 274,330.45

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Solution

The fourth proportional to 1,115,778.70, 1,673,668.05 and 274,330.45 is: 411,495.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,778.70 : 1,673,668.05 = 274,330.45 : x
  2. Step 2: Convert to fraction form
    1,115,778.70/1,673,668.05 = 274,330.45/x
  3. Step 3: Cross multiply
    1,115,778.70x = 1,673,668.05 × 274,330.45
  4. Step 4: Simplify right side
    1,115,778.70x = 459,138,109,307.12
  5. Step 5: Solve for x
    x = 459,138,109,307.12/1,115,778.70
  6. Step 6: Final answer
    x = 411,495.68

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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.