Home / 703,521.81-1,056,694.88-419,766.12

Finding the Fourth Proportional to 703,521.81, 1,056,694.88 and 419,766.12

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Solution

The fourth proportional to 703,521.81, 1,056,694.88 and 419,766.12 is: 630,491.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,521.81 : 1,056,694.88 = 419,766.12 : x
  2. Step 2: Convert to fraction form
    703,521.81/1,056,694.88 = 419,766.12/x
  3. Step 3: Cross multiply
    703,521.81x = 1,056,694.88 × 419,766.12
  4. Step 4: Simplify right side
    703,521.81x = 443,564,709,801.47
  5. Step 5: Solve for x
    x = 443,564,709,801.47/703,521.81
  6. Step 6: Final answer
    x = 630,491.77

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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.