Home / 1,980,630.87-2,971,147.65-683,614.45

Finding the Fourth Proportional to 1,980,630.87, 2,971,147.65 and 683,614.45

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Solution

The fourth proportional to 1,980,630.87, 2,971,147.65 and 683,614.45 is: 1,025,491.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,630.87 : 2,971,147.65 = 683,614.45 : x
  2. Step 2: Convert to fraction form
    1,980,630.87/2,971,147.65 = 683,614.45/x
  3. Step 3: Cross multiply
    1,980,630.87x = 2,971,147.65 × 683,614.45
  4. Step 4: Simplify right side
    1,980,630.87x = 2,031,119,466,623.54
  5. Step 5: Solve for x
    x = 2,031,119,466,623.54/1,980,630.87
  6. Step 6: Final answer
    x = 1,025,491.17

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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.