Home / 1,391,000.36-2,086,642.13-480,064.28

Finding the Fourth Proportional to 1,391,000.36, 2,086,642.13 and 480,064.28

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Solution

The fourth proportional to 1,391,000.36, 2,086,642.13 and 480,064.28 is: 720,145.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,000.36 : 2,086,642.13 = 480,064.28 : x
  2. Step 2: Convert to fraction form
    1,391,000.36/2,086,642.13 = 480,064.28/x
  3. Step 3: Cross multiply
    1,391,000.36x = 2,086,642.13 × 480,064.28
  4. Step 4: Simplify right side
    1,391,000.36x = 1,001,722,338,922.58
  5. Step 5: Solve for x
    x = 1,001,722,338,922.58/1,391,000.36
  6. Step 6: Final answer
    x = 720,145.28

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1.5x scale

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.