Home / 1,243,190.70-1,865,223.45-611,682.30

Finding the Fourth Proportional to 1,243,190.70, 1,865,223.45 and 611,682.30

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Solution

The fourth proportional to 1,243,190.70, 1,865,223.45 and 611,682.30 is: 917,738.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,190.70 : 1,865,223.45 = 611,682.30 : x
  2. Step 2: Convert to fraction form
    1,243,190.70/1,865,223.45 = 611,682.30/x
  3. Step 3: Cross multiply
    1,243,190.70x = 1,865,223.45 × 611,682.30
  4. Step 4: Simplify right side
    1,243,190.70x = 1,140,924,169,909.94
  5. Step 5: Solve for x
    x = 1,140,924,169,909.94/1,243,190.70
  6. Step 6: Final answer
    x = 917,738.66

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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.