Home / 1,405,040.40-2,107,780.08-458,190.90

Finding the Fourth Proportional to 1,405,040.40, 2,107,780.08 and 458,190.90

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Solution

The fourth proportional to 1,405,040.40, 2,107,780.08 and 458,190.90 is: 687,357.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,040.40 : 2,107,780.08 = 458,190.90 : x
  2. Step 2: Convert to fraction form
    1,405,040.40/2,107,780.08 = 458,190.90/x
  3. Step 3: Cross multiply
    1,405,040.40x = 2,107,780.08 × 458,190.90
  4. Step 4: Simplify right side
    1,405,040.40x = 965,765,651,857.27
  5. Step 5: Solve for x
    x = 965,765,651,857.27/1,405,040.40
  6. Step 6: Final answer
    x = 687,357.92

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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.