Home / 1,389,133.40-2,083,700.10-854,922.20

Finding the Fourth Proportional to 1,389,133.40, 2,083,700.10 and 854,922.20

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Solution

The fourth proportional to 1,389,133.40, 2,083,700.10 and 854,922.20 is: 1,282,383.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,133.40 : 2,083,700.10 = 854,922.20 : x
  2. Step 2: Convert to fraction form
    1,389,133.40/2,083,700.10 = 854,922.20/x
  3. Step 3: Cross multiply
    1,389,133.40x = 2,083,700.10 × 854,922.20
  4. Step 4: Simplify right side
    1,389,133.40x = 1,781,401,473,632.22
  5. Step 5: Solve for x
    x = 1,781,401,473,632.22/1,389,133.40
  6. Step 6: Final answer
    x = 1,282,383.30

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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.