Home / 2,143,287.48-3,214,931.16-647,379.48

Finding the Fourth Proportional to 2,143,287.48, 3,214,931.16 and 647,379.48

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Solution

The fourth proportional to 2,143,287.48, 3,214,931.16 and 647,379.48 is: 971,069.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143,287.48 : 3,214,931.16 = 647,379.48 : x
  2. Step 2: Convert to fraction form
    2,143,287.48/3,214,931.16 = 647,379.48/x
  3. Step 3: Cross multiply
    2,143,287.48x = 3,214,931.16 × 647,379.48
  4. Step 4: Simplify right side
    2,143,287.48x = 2,081,280,462,596.60
  5. Step 5: Solve for x
    x = 2,081,280,462,596.60/2,143,287.48
  6. Step 6: Final answer
    x = 971,069.20

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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.