Home / 555,564.58-766,741.36-313,862.72

Finding the Fourth Proportional to 555,564.58, 766,741.36 and 313,862.72

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Solution

The fourth proportional to 555,564.58, 766,741.36 and 313,862.72 is: 433,165.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,564.58 : 766,741.36 = 313,862.72 : x
  2. Step 2: Convert to fraction form
    555,564.58/766,741.36 = 313,862.72/x
  3. Step 3: Cross multiply
    555,564.58x = 766,741.36 × 313,862.72
  4. Step 4: Simplify right side
    555,564.58x = 240,651,528,786.10
  5. Step 5: Solve for x
    x = 240,651,528,786.10/555,564.58
  6. Step 6: Final answer
    x = 433,165.72

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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.