Home / 1,782,128.70-2,673,193.05-520,083.90

Finding the Fourth Proportional to 1,782,128.70, 2,673,193.05 and 520,083.90

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Solution

The fourth proportional to 1,782,128.70, 2,673,193.05 and 520,083.90 is: 780,125.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782,128.70 : 2,673,193.05 = 520,083.90 : x
  2. Step 2: Convert to fraction form
    1,782,128.70/2,673,193.05 = 520,083.90/x
  3. Step 3: Cross multiply
    1,782,128.70x = 2,673,193.05 × 520,083.90
  4. Step 4: Simplify right side
    1,782,128.70x = 1,390,284,666,896.90
  5. Step 5: Solve for x
    x = 1,390,284,666,896.90/1,782,128.70
  6. Step 6: Final answer
    x = 780,125.85

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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.