Home / 1,230,938.56-1,698,727.17-687,071.62

Finding the Fourth Proportional to 1,230,938.56, 1,698,727.17 and 687,071.62

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Solution

The fourth proportional to 1,230,938.56, 1,698,727.17 and 687,071.62 is: 948,176.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,938.56 : 1,698,727.17 = 687,071.62 : x
  2. Step 2: Convert to fraction form
    1,230,938.56/1,698,727.17 = 687,071.62/x
  3. Step 3: Cross multiply
    1,230,938.56x = 1,698,727.17 × 687,071.62
  4. Step 4: Simplify right side
    1,230,938.56x = 1,167,147,228,629.92
  5. Step 5: Solve for x
    x = 1,167,147,228,629.92/1,230,938.56
  6. Step 6: Final answer
    x = 948,176.67

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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.