Home / 555,494.64-766,629.80-313,821.58

Finding the Fourth Proportional to 555,494.64, 766,629.80 and 313,821.58

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Solution

The fourth proportional to 555,494.64, 766,629.80 and 313,821.58 is: 433,100.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,494.64 : 766,629.80 = 313,821.58 : x
  2. Step 2: Convert to fraction form
    555,494.64/766,629.80 = 313,821.58/x
  3. Step 3: Cross multiply
    555,494.64x = 766,629.80 × 313,821.58
  4. Step 4: Simplify right side
    555,494.64x = 240,584,975,111.08
  5. Step 5: Solve for x
    x = 240,584,975,111.08/555,494.64
  6. Step 6: Final answer
    x = 433,100.44

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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.