Home / 819,710.79-1,131,198.66-457,135.04

Finding the Fourth Proportional to 819,710.79, 1,131,198.66 and 457,135.04

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Solution

The fourth proportional to 819,710.79, 1,131,198.66 and 457,135.04 is: 630,845.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,710.79 : 1,131,198.66 = 457,135.04 : x
  2. Step 2: Convert to fraction form
    819,710.79/1,131,198.66 = 457,135.04/x
  3. Step 3: Cross multiply
    819,710.79x = 1,131,198.66 × 457,135.04
  4. Step 4: Simplify right side
    819,710.79x = 517,110,539,031.05
  5. Step 5: Solve for x
    x = 517,110,539,031.05/819,710.79
  6. Step 6: Final answer
    x = 630,845.10

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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.