Home / 717,069.42-989,518.24-394,716.56

Finding the Fourth Proportional to 717,069.42, 989,518.24 and 394,716.56

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Solution

The fourth proportional to 717,069.42, 989,518.24 and 394,716.56 is: 544,688.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,069.42 : 989,518.24 = 394,716.56 : x
  2. Step 2: Convert to fraction form
    717,069.42/989,518.24 = 394,716.56/x
  3. Step 3: Cross multiply
    717,069.42x = 989,518.24 × 394,716.56
  4. Step 4: Simplify right side
    717,069.42x = 390,579,235,750.05
  5. Step 5: Solve for x
    x = 390,579,235,750.05/717,069.42
  6. Step 6: Final answer
    x = 544,688.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.