Home / 1,097,806.60-1,646,709.90-388,635.40

Finding the Fourth Proportional to 1,097,806.60, 1,646,709.90 and 388,635.40

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Solution

The fourth proportional to 1,097,806.60, 1,646,709.90 and 388,635.40 is: 582,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,806.60 : 1,646,709.90 = 388,635.40 : x
  2. Step 2: Convert to fraction form
    1,097,806.60/1,646,709.90 = 388,635.40/x
  3. Step 3: Cross multiply
    1,097,806.60x = 1,646,709.90 × 388,635.40
  4. Step 4: Simplify right side
    1,097,806.60x = 639,969,760,670.46
  5. Step 5: Solve for x
    x = 639,969,760,670.46/1,097,806.60
  6. Step 6: Final answer
    x = 582,953.10

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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.