Home / 1,391,632.20-2,087,448.30-1,076,315.40

Finding the Fourth Proportional to 1,391,632.20, 2,087,448.30 and 1,076,315.40

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Solution

The fourth proportional to 1,391,632.20, 2,087,448.30 and 1,076,315.40 is: 1,614,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,632.20 : 2,087,448.30 = 1,076,315.40 : x
  2. Step 2: Convert to fraction form
    1,391,632.20/2,087,448.30 = 1,076,315.40/x
  3. Step 3: Cross multiply
    1,391,632.20x = 2,087,448.30 × 1,076,315.40
  4. Step 4: Simplify right side
    1,391,632.20x = 2,246,752,751,993.82
  5. Step 5: Solve for x
    x = 2,246,752,751,993.82/1,391,632.20
  6. Step 6: Final answer
    x = 1,614,473.10

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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.