Home / 1,421,491.72-2,131,456.62-700,246.40

Finding the Fourth Proportional to 1,421,491.72, 2,131,456.62 and 700,246.40

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Solution

The fourth proportional to 1,421,491.72, 2,131,456.62 and 700,246.40 is: 1,049,984.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,491.72 : 2,131,456.62 = 700,246.40 : x
  2. Step 2: Convert to fraction form
    1,421,491.72/2,131,456.62 = 700,246.40/x
  3. Step 3: Cross multiply
    1,421,491.72x = 2,131,456.62 × 700,246.40
  4. Step 4: Simplify right side
    1,421,491.72x = 1,492,544,824,911.17
  5. Step 5: Solve for x
    x = 1,492,544,824,911.17/1,421,491.72
  6. Step 6: Final answer
    x = 1,049,984.89

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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.