Home / 1,419,603.40-2,129,405.10-422,331.40

Finding the Fourth Proportional to 1,419,603.40, 2,129,405.10 and 422,331.40

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Solution

The fourth proportional to 1,419,603.40, 2,129,405.10 and 422,331.40 is: 633,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,603.40 : 2,129,405.10 = 422,331.40 : x
  2. Step 2: Convert to fraction form
    1,419,603.40/2,129,405.10 = 422,331.40/x
  3. Step 3: Cross multiply
    1,419,603.40x = 2,129,405.10 × 422,331.40
  4. Step 4: Simplify right side
    1,419,603.40x = 899,314,637,050.14
  5. Step 5: Solve for x
    x = 899,314,637,050.14/1,419,603.40
  6. Step 6: Final answer
    x = 633,497.10

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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.