Home / 809,148.60-1,212,686.10-719,983.80

Finding the Fourth Proportional to 809,148.60, 1,212,686.10 and 719,983.80

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Solution

The fourth proportional to 809,148.60, 1,212,686.10 and 719,983.80 is: 1,079,053.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,148.60 : 1,212,686.10 = 719,983.80 : x
  2. Step 2: Convert to fraction form
    809,148.60/1,212,686.10 = 719,983.80/x
  3. Step 3: Cross multiply
    809,148.60x = 1,212,686.10 × 719,983.80
  4. Step 4: Simplify right side
    809,148.60x = 873,114,346,485.18
  5. Step 5: Solve for x
    x = 873,114,346,485.18/809,148.60
  6. Step 6: Final answer
    x = 1,079,053.15

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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.