Home / 869,108.80-1,303,663.20-729,140.80

Finding the Fourth Proportional to 869,108.80, 1,303,663.20 and 729,140.80

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Solution

The fourth proportional to 869,108.80, 1,303,663.20 and 729,140.80 is: 1,093,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,108.80 : 1,303,663.20 = 729,140.80 : x
  2. Step 2: Convert to fraction form
    869,108.80/1,303,663.20 = 729,140.80/x
  3. Step 3: Cross multiply
    869,108.80x = 1,303,663.20 × 729,140.80
  4. Step 4: Simplify right side
    869,108.80x = 950,554,028,578.56
  5. Step 5: Solve for x
    x = 950,554,028,578.56/869,108.80
  6. Step 6: Final answer
    x = 1,093,711.20

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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.