Home / 1,128,219.42-1,556,963.84-692,418.36

Finding the Fourth Proportional to 1,128,219.42, 1,556,963.84 and 692,418.36

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Solution

The fourth proportional to 1,128,219.42, 1,556,963.84 and 692,418.36 is: 955,550.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,219.42 : 1,556,963.84 = 692,418.36 : x
  2. Step 2: Convert to fraction form
    1,128,219.42/1,556,963.84 = 692,418.36/x
  3. Step 3: Cross multiply
    1,128,219.42x = 1,556,963.84 × 692,418.36
  4. Step 4: Simplify right side
    1,128,219.42x = 1,078,070,348,672.10
  5. Step 5: Solve for x
    x = 1,078,070,348,672.10/1,128,219.42
  6. Step 6: Final answer
    x = 955,550.25

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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.