Home / 1,189,139.40-1,782,396.90-657,042.30

Finding the Fourth Proportional to 1,189,139.40, 1,782,396.90 and 657,042.30

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Solution

The fourth proportional to 1,189,139.40, 1,782,396.90 and 657,042.30 is: 984,838.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,139.40 : 1,782,396.90 = 657,042.30 : x
  2. Step 2: Convert to fraction form
    1,189,139.40/1,782,396.90 = 657,042.30/x
  3. Step 3: Cross multiply
    1,189,139.40x = 1,782,396.90 × 657,042.30
  4. Step 4: Simplify right side
    1,189,139.40x = 1,171,110,158,688.87
  5. Step 5: Solve for x
    x = 1,171,110,158,688.87/1,189,139.40
  6. Step 6: Final answer
    x = 984,838.41

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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.