Home / 1,683,139.96-2,524,710.30-420,967.72

Finding the Fourth Proportional to 1,683,139.96, 2,524,710.30 and 420,967.72

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Solution

The fourth proportional to 1,683,139.96, 2,524,710.30 and 420,967.72 is: 631,451.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683,139.96 : 2,524,710.30 = 420,967.72 : x
  2. Step 2: Convert to fraction form
    1,683,139.96/2,524,710.30 = 420,967.72/x
  3. Step 3: Cross multiply
    1,683,139.96x = 2,524,710.30 × 420,967.72
  4. Step 4: Simplify right side
    1,683,139.96x = 1,062,821,538,651.52
  5. Step 5: Solve for x
    x = 1,062,821,538,651.52/1,683,139.96
  6. Step 6: Final answer
    x = 631,451.67

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Double scale
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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.