Home / 763,472.80-1,145,209.20-719,927.20

Finding the Fourth Proportional to 763,472.80, 1,145,209.20 and 719,927.20

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Solution

The fourth proportional to 763,472.80, 1,145,209.20 and 719,927.20 is: 1,079,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,472.80 : 1,145,209.20 = 719,927.20 : x
  2. Step 2: Convert to fraction form
    763,472.80/1,145,209.20 = 719,927.20/x
  3. Step 3: Cross multiply
    763,472.80x = 1,145,209.20 × 719,927.20
  4. Step 4: Simplify right side
    763,472.80x = 824,467,252,770.24
  5. Step 5: Solve for x
    x = 824,467,252,770.24/763,472.80
  6. Step 6: Final answer
    x = 1,079,890.80

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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.