Home / 790,720.20-1,186,069.82-191,686.72

Finding the Fourth Proportional to 790,720.20, 1,186,069.82 and 191,686.72

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Solution

The fourth proportional to 790,720.20, 1,186,069.82 and 191,686.72 is: 287,527.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,720.20 : 1,186,069.82 = 191,686.72 : x
  2. Step 2: Convert to fraction form
    790,720.20/1,186,069.82 = 191,686.72/x
  3. Step 3: Cross multiply
    790,720.20x = 1,186,069.82 × 191,686.72
  4. Step 4: Simplify right side
    790,720.20x = 227,353,833,486.79
  5. Step 5: Solve for x
    x = 227,353,833,486.79/790,720.20
  6. Step 6: Final answer
    x = 287,527.54

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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.