Home / 1,114,782.21-1,672,256.66-316,128.06

Finding the Fourth Proportional to 1,114,782.21, 1,672,256.66 and 316,128.06

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Solution

The fourth proportional to 1,114,782.21, 1,672,256.66 and 316,128.06 is: 474,215.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,782.21 : 1,672,256.66 = 316,128.06 : x
  2. Step 2: Convert to fraction form
    1,114,782.21/1,672,256.66 = 316,128.06/x
  3. Step 3: Cross multiply
    1,114,782.21x = 1,672,256.66 × 316,128.06
  4. Step 4: Simplify right side
    1,114,782.21x = 528,647,252,167.24
  5. Step 5: Solve for x
    x = 528,647,252,167.24/1,114,782.21
  6. Step 6: Final answer
    x = 474,215.72

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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.