Home / 842,182.68-1,263,696.30-392,939.40

Finding the Fourth Proportional to 842,182.68, 1,263,696.30 and 392,939.40

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Solution

The fourth proportional to 842,182.68, 1,263,696.30 and 392,939.40 is: 589,606.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,182.68 : 1,263,696.30 = 392,939.40 : x
  2. Step 2: Convert to fraction form
    842,182.68/1,263,696.30 = 392,939.40/x
  3. Step 3: Cross multiply
    842,182.68x = 1,263,696.30 × 392,939.40
  4. Step 4: Simplify right side
    842,182.68x = 496,556,065,904.22
  5. Step 5: Solve for x
    x = 496,556,065,904.22/842,182.68
  6. Step 6: Final answer
    x = 589,606.12

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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.