Home / 821,768.86-1,230,438.21-536,753.62

Finding the Fourth Proportional to 821,768.86, 1,230,438.21 and 536,753.62

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Solution

The fourth proportional to 821,768.86, 1,230,438.21 and 536,753.62 is: 803,683.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,768.86 : 1,230,438.21 = 536,753.62 : x
  2. Step 2: Convert to fraction form
    821,768.86/1,230,438.21 = 536,753.62/x
  3. Step 3: Cross multiply
    821,768.86x = 1,230,438.21 × 536,753.62
  4. Step 4: Simplify right side
    821,768.86x = 660,442,163,403.82
  5. Step 5: Solve for x
    x = 660,442,163,403.82/821,768.86
  6. Step 6: Final answer
    x = 803,683.61

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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.