Home / 870,113.20-1,303,441.80-766,202.80

Finding the Fourth Proportional to 870,113.20, 1,303,441.80 and 766,202.80

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Solution

The fourth proportional to 870,113.20, 1,303,441.80 and 766,202.80 is: 1,147,782.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,113.20 : 1,303,441.80 = 766,202.80 : x
  2. Step 2: Convert to fraction form
    870,113.20/1,303,441.80 = 766,202.80/x
  3. Step 3: Cross multiply
    870,113.20x = 1,303,441.80 × 766,202.80
  4. Step 4: Simplify right side
    870,113.20x = 998,700,756,797.04
  5. Step 5: Solve for x
    x = 998,700,756,797.04/870,113.20
  6. Step 6: Final answer
    x = 1,147,782.56

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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.