Home / 818,305.72-1,129,180.82-455,763.25

Finding the Fourth Proportional to 818,305.72, 1,129,180.82 and 455,763.25

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Solution

The fourth proportional to 818,305.72, 1,129,180.82 and 455,763.25 is: 628,908.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,305.72 : 1,129,180.82 = 455,763.25 : x
  2. Step 2: Convert to fraction form
    818,305.72/1,129,180.82 = 455,763.25/x
  3. Step 3: Cross multiply
    818,305.72x = 1,129,180.82 × 455,763.25
  4. Step 4: Simplify right side
    818,305.72x = 514,639,118,677.32
  5. Step 5: Solve for x
    x = 514,639,118,677.32/818,305.72
  6. Step 6: Final answer
    x = 628,908.13

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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.