Home / 811,487.92-1,119,937.04-467,335.12

Finding the Fourth Proportional to 811,487.92, 1,119,937.04 and 467,335.12

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Solution

The fourth proportional to 811,487.92, 1,119,937.04 and 467,335.12 is: 644,970.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,487.92 : 1,119,937.04 = 467,335.12 : x
  2. Step 2: Convert to fraction form
    811,487.92/1,119,937.04 = 467,335.12/x
  3. Step 3: Cross multiply
    811,487.92x = 1,119,937.04 × 467,335.12
  4. Step 4: Simplify right side
    811,487.92x = 523,385,910,980.85
  5. Step 5: Solve for x
    x = 523,385,910,980.85/811,487.92
  6. Step 6: Final answer
    x = 644,970.67

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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.