Home / 715,728.15-1,073,536.34-316,381.95

Finding the Fourth Proportional to 715,728.15, 1,073,536.34 and 316,381.95

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Solution

The fourth proportional to 715,728.15, 1,073,536.34 and 316,381.95 is: 474,548.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,728.15 : 1,073,536.34 = 316,381.95 : x
  2. Step 2: Convert to fraction form
    715,728.15/1,073,536.34 = 316,381.95/x
  3. Step 3: Cross multiply
    715,728.15x = 1,073,536.34 × 316,381.95
  4. Step 4: Simplify right side
    715,728.15x = 339,647,519,063.15
  5. Step 5: Solve for x
    x = 339,647,519,063.15/715,728.15
  6. Step 6: Final answer
    x = 474,548.22

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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.