Home / 1,115,216.30-1,672,825.67-305,607.63

Finding the Fourth Proportional to 1,115,216.30, 1,672,825.67 and 305,607.63

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Solution

The fourth proportional to 1,115,216.30, 1,672,825.67 and 305,607.63 is: 458,411.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,216.30 : 1,672,825.67 = 305,607.63 : x
  2. Step 2: Convert to fraction form
    1,115,216.30/1,672,825.67 = 305,607.63/x
  3. Step 3: Cross multiply
    1,115,216.30x = 1,672,825.67 × 305,607.63
  4. Step 4: Simplify right side
    1,115,216.30x = 511,228,294,302.95
  5. Step 5: Solve for x
    x = 511,228,294,302.95/1,115,216.30
  6. Step 6: Final answer
    x = 458,411.78

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Double scale
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Similar ratio
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1.5x scale

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.