Home / 727,142.40-1,090,768.28-194,651.64

Finding the Fourth Proportional to 727,142.40, 1,090,768.28 and 194,651.64

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Solution

The fourth proportional to 727,142.40, 1,090,768.28 and 194,651.64 is: 291,992.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,142.40 : 1,090,768.28 = 194,651.64 : x
  2. Step 2: Convert to fraction form
    727,142.40/1,090,768.28 = 194,651.64/x
  3. Step 3: Cross multiply
    727,142.40x = 1,090,768.28 × 194,651.64
  4. Step 4: Simplify right side
    727,142.40x = 212,319,833,588.72
  5. Step 5: Solve for x
    x = 212,319,833,588.72/727,142.40
  6. Step 6: Final answer
    x = 291,992.10

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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.