Home / 1,214,206.32-1,821,255.48-415,559.28

Finding the Fourth Proportional to 1,214,206.32, 1,821,255.48 and 415,559.28

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Solution

The fourth proportional to 1,214,206.32, 1,821,255.48 and 415,559.28 is: 623,320.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,206.32 : 1,821,255.48 = 415,559.28 : x
  2. Step 2: Convert to fraction form
    1,214,206.32/1,821,255.48 = 415,559.28/x
  3. Step 3: Cross multiply
    1,214,206.32x = 1,821,255.48 × 415,559.28
  4. Step 4: Simplify right side
    1,214,206.32x = 756,839,615,964.86
  5. Step 5: Solve for x
    x = 756,839,615,964.86/1,214,206.32
  6. Step 6: Final answer
    x = 623,320.44

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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.