Home / 819,847.08-1,131,390.65-457,261.58

Finding the Fourth Proportional to 819,847.08, 1,131,390.65 and 457,261.58

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Solution

The fourth proportional to 819,847.08, 1,131,390.65 and 457,261.58 is: 631,021.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,847.08 : 1,131,390.65 = 457,261.58 : x
  2. Step 2: Convert to fraction form
    819,847.08/1,131,390.65 = 457,261.58/x
  3. Step 3: Cross multiply
    819,847.08x = 1,131,390.65 × 457,261.58
  4. Step 4: Simplify right side
    819,847.08x = 517,341,480,187.86
  5. Step 5: Solve for x
    x = 517,341,480,187.86/819,847.08
  6. Step 6: Final answer
    x = 631,021.92

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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.