Home / 837,108.30-1,155,177.87-455,121.90

Finding the Fourth Proportional to 837,108.30, 1,155,177.87 and 455,121.90

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Solution

The fourth proportional to 837,108.30, 1,155,177.87 and 455,121.90 is: 628,051.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,108.30 : 1,155,177.87 = 455,121.90 : x
  2. Step 2: Convert to fraction form
    837,108.30/1,155,177.87 = 455,121.90/x
  3. Step 3: Cross multiply
    837,108.30x = 1,155,177.87 × 455,121.90
  4. Step 4: Simplify right side
    837,108.30x = 525,746,747,032.35
  5. Step 5: Solve for x
    x = 525,746,747,032.35/837,108.30
  6. Step 6: Final answer
    x = 628,051.05

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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.