Home / 1,328,839.34-1,833,223.04-812,615.80

Finding the Fourth Proportional to 1,328,839.34, 1,833,223.04 and 812,615.80

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Solution

The fourth proportional to 1,328,839.34, 1,833,223.04 and 812,615.80 is: 1,121,058.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,839.34 : 1,833,223.04 = 812,615.80 : x
  2. Step 2: Convert to fraction form
    1,328,839.34/1,833,223.04 = 812,615.80/x
  3. Step 3: Cross multiply
    1,328,839.34x = 1,833,223.04 × 812,615.80
  4. Step 4: Simplify right side
    1,328,839.34x = 1,489,706,007,228.03
  5. Step 5: Solve for x
    x = 1,489,706,007,228.03/1,328,839.34
  6. Step 6: Final answer
    x = 1,121,058.03

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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.