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Finding the Fourth Proportional to 550,810.80, 825,139.08 and 380,006.10

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Solution

The fourth proportional to 550,810.80, 825,139.08 and 380,006.10 is: 569,266.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,810.80 : 825,139.08 = 380,006.10 : x
  2. Step 2: Convert to fraction form
    550,810.80/825,139.08 = 380,006.10/x
  3. Step 3: Cross multiply
    550,810.80x = 825,139.08 × 380,006.10
  4. Step 4: Simplify right side
    550,810.80x = 313,557,883,748.39
  5. Step 5: Solve for x
    x = 313,557,883,748.39/550,810.80
  6. Step 6: Final answer
    x = 569,266.04

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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.