Home / 1,030,356.43-1,420,249.51-812,209.59

Finding the Fourth Proportional to 1,030,356.43, 1,420,249.51 and 812,209.59

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Solution

The fourth proportional to 1,030,356.43, 1,420,249.51 and 812,209.59 is: 1,119,554.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,356.43 : 1,420,249.51 = 812,209.59 : x
  2. Step 2: Convert to fraction form
    1,030,356.43/1,420,249.51 = 812,209.59/x
  3. Step 3: Cross multiply
    1,030,356.43x = 1,420,249.51 × 812,209.59
  4. Step 4: Simplify right side
    1,030,356.43x = 1,153,540,273,230.06
  5. Step 5: Solve for x
    x = 1,153,540,273,230.06/1,030,356.43
  6. Step 6: Final answer
    x = 1,119,554.60

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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.