Home / 1,383,869.10-1,909,876.41-839,962.20

Finding the Fourth Proportional to 1,383,869.10, 1,909,876.41 and 839,962.20

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Solution

The fourth proportional to 1,383,869.10, 1,909,876.41 and 839,962.20 is: 1,159,231.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,869.10 : 1,909,876.41 = 839,962.20 : x
  2. Step 2: Convert to fraction form
    1,383,869.10/1,909,876.41 = 839,962.20/x
  3. Step 3: Cross multiply
    1,383,869.10x = 1,909,876.41 × 839,962.20
  4. Step 4: Simplify right side
    1,383,869.10x = 1,604,223,991,071.70
  5. Step 5: Solve for x
    x = 1,604,223,991,071.70/1,383,869.10
  6. Step 6: Final answer
    x = 1,159,231.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.