Home / 688,151.16-1,032,175.71-288,775.80

Finding the Fourth Proportional to 688,151.16, 1,032,175.71 and 288,775.80

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Solution

The fourth proportional to 688,151.16, 1,032,175.71 and 288,775.80 is: 433,142.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,151.16 : 1,032,175.71 = 288,775.80 : x
  2. Step 2: Convert to fraction form
    688,151.16/1,032,175.71 = 288,775.80/x
  3. Step 3: Cross multiply
    688,151.16x = 1,032,175.71 × 288,775.80
  4. Step 4: Simplify right side
    688,151.16x = 298,067,366,395.82
  5. Step 5: Solve for x
    x = 298,067,366,395.82/688,151.16
  6. Step 6: Final answer
    x = 433,142.29

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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.