Home / 717,682.60-989,964.04-427,099.35

Finding the Fourth Proportional to 717,682.60, 989,964.04 and 427,099.35

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Solution

The fourth proportional to 717,682.60, 989,964.04 and 427,099.35 is: 589,136.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,682.60 : 989,964.04 = 427,099.35 : x
  2. Step 2: Convert to fraction form
    717,682.60/989,964.04 = 427,099.35/x
  3. Step 3: Cross multiply
    717,682.60x = 989,964.04 × 427,099.35
  4. Step 4: Simplify right side
    717,682.60x = 422,812,998,007.37
  5. Step 5: Solve for x
    x = 422,812,998,007.37/717,682.60
  6. Step 6: Final answer
    x = 589,136.48

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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.