Home / 891,109.74-1,336,130.78-283,635.64

Finding the Fourth Proportional to 891,109.74, 1,336,130.78 and 283,635.64

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Solution

The fourth proportional to 891,109.74, 1,336,130.78 and 283,635.64 is: 425,283.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,109.74 : 1,336,130.78 = 283,635.64 : x
  2. Step 2: Convert to fraction form
    891,109.74/1,336,130.78 = 283,635.64/x
  3. Step 3: Cross multiply
    891,109.74x = 1,336,130.78 × 283,635.64
  4. Step 4: Simplify right side
    891,109.74x = 378,974,308,909.00
  5. Step 5: Solve for x
    x = 378,974,308,909.00/891,109.74
  6. Step 6: Final answer
    x = 425,283.54

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Double scale
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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.