Home / 1,092,140.09-1,638,446.58-418,221.42

Finding the Fourth Proportional to 1,092,140.09, 1,638,446.58 and 418,221.42

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Solution

The fourth proportional to 1,092,140.09, 1,638,446.58 and 418,221.42 is: 627,422.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,140.09 : 1,638,446.58 = 418,221.42 : x
  2. Step 2: Convert to fraction form
    1,092,140.09/1,638,446.58 = 418,221.42/x
  3. Step 3: Cross multiply
    1,092,140.09x = 1,638,446.58 × 418,221.42
  4. Step 4: Simplify right side
    1,092,140.09x = 685,233,454,315.74
  5. Step 5: Solve for x
    x = 685,233,454,315.74/1,092,140.09
  6. Step 6: Final answer
    x = 627,422.67

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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.