Home / 868,618.38-1,303,101.66-300,020.34

Finding the Fourth Proportional to 868,618.38, 1,303,101.66 and 300,020.34

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Solution

The fourth proportional to 868,618.38, 1,303,101.66 and 300,020.34 is: 450,090.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,618.38 : 1,303,101.66 = 300,020.34 : x
  2. Step 2: Convert to fraction form
    868,618.38/1,303,101.66 = 300,020.34/x
  3. Step 3: Cross multiply
    868,618.38x = 1,303,101.66 × 300,020.34
  4. Step 4: Simplify right side
    868,618.38x = 390,957,003,087.76
  5. Step 5: Solve for x
    x = 390,957,003,087.76/868,618.38
  6. Step 6: Final answer
    x = 450,090.64

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1.5x scale

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.