Home / 1,980,640.40-2,971,161.90-683,624

Finding the Fourth Proportional to 1,980,640.40, 2,971,161.90 and 683,624

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Solution

The fourth proportional to 1,980,640.40, 2,971,161.90 and 683,624 is: 1,025,505.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,640.40 : 2,971,161.90 = 683,624 : x
  2. Step 2: Convert to fraction form
    1,980,640.40/2,971,161.90 = 683,624/x
  3. Step 3: Cross multiply
    1,980,640.40x = 2,971,161.90 × 683,624
  4. Step 4: Simplify right side
    1,980,640.40x = 2,031,157,582,725.60
  5. Step 5: Solve for x
    x = 2,031,157,582,725.60/1,980,640.40
  6. Step 6: Final answer
    x = 1,025,505.48

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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.