Home / 1,289,596.14-1,779,685.83-716,660.46

Finding the Fourth Proportional to 1,289,596.14, 1,779,685.83 and 716,660.46

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Solution

The fourth proportional to 1,289,596.14, 1,779,685.83 and 716,660.46 is: 989,015.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,596.14 : 1,779,685.83 = 716,660.46 : x
  2. Step 2: Convert to fraction form
    1,289,596.14/1,779,685.83 = 716,660.46/x
  3. Step 3: Cross multiply
    1,289,596.14x = 1,779,685.83 × 716,660.46
  4. Step 4: Simplify right side
    1,289,596.14x = 1,275,430,465,583.28
  5. Step 5: Solve for x
    x = 1,275,430,465,583.28/1,289,596.14
  6. Step 6: Final answer
    x = 989,015.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.