Home / 839,980.80-1,259,971.20-735,004.80

Finding the Fourth Proportional to 839,980.80, 1,259,971.20 and 735,004.80

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Solution

The fourth proportional to 839,980.80, 1,259,971.20 and 735,004.80 is: 1,102,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,980.80 : 1,259,971.20 = 735,004.80 : x
  2. Step 2: Convert to fraction form
    839,980.80/1,259,971.20 = 735,004.80/x
  3. Step 3: Cross multiply
    839,980.80x = 1,259,971.20 × 735,004.80
  4. Step 4: Simplify right side
    839,980.80x = 926,084,879,861.76
  5. Step 5: Solve for x
    x = 926,084,879,861.76/839,980.80
  6. Step 6: Final answer
    x = 1,102,507.20

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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.