Home / 1,419,417.60-2,129,126.40-422,145.60

Finding the Fourth Proportional to 1,419,417.60, 2,129,126.40 and 422,145.60

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Solution

The fourth proportional to 1,419,417.60, 2,129,126.40 and 422,145.60 is: 633,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,417.60 : 2,129,126.40 = 422,145.60 : x
  2. Step 2: Convert to fraction form
    1,419,417.60/2,129,126.40 = 422,145.60/x
  3. Step 3: Cross multiply
    1,419,417.60x = 2,129,126.40 × 422,145.60
  4. Step 4: Simplify right side
    1,419,417.60x = 898,801,341,603.84
  5. Step 5: Solve for x
    x = 898,801,341,603.84/1,419,417.60
  6. Step 6: Final answer
    x = 633,218.40

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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.