Home / 688,540.20-1,032,810.30-475,963.80

Finding the Fourth Proportional to 688,540.20, 1,032,810.30 and 475,963.80

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Solution

The fourth proportional to 688,540.20, 1,032,810.30 and 475,963.80 is: 713,945.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,540.20 : 1,032,810.30 = 475,963.80 : x
  2. Step 2: Convert to fraction form
    688,540.20/1,032,810.30 = 475,963.80/x
  3. Step 3: Cross multiply
    688,540.20x = 1,032,810.30 × 475,963.80
  4. Step 4: Simplify right side
    688,540.20x = 491,580,315,067.14
  5. Step 5: Solve for x
    x = 491,580,315,067.14/688,540.20
  6. Step 6: Final answer
    x = 713,945.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.