Home / 748,512.64-1,122,633.48-215,902.72

Finding the Fourth Proportional to 748,512.64, 1,122,633.48 and 215,902.72

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Solution

The fourth proportional to 748,512.64, 1,122,633.48 and 215,902.72 is: 323,815.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,512.64 : 1,122,633.48 = 215,902.72 : x
  2. Step 2: Convert to fraction form
    748,512.64/1,122,633.48 = 215,902.72/x
  3. Step 3: Cross multiply
    748,512.64x = 1,122,633.48 × 215,902.72
  4. Step 4: Simplify right side
    748,512.64x = 242,379,621,895.07
  5. Step 5: Solve for x
    x = 242,379,621,895.07/748,512.64
  6. Step 6: Final answer
    x = 323,815.00

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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.