Home / 868,460.78-1,302,628.76-269,406.40

Finding the Fourth Proportional to 868,460.78, 1,302,628.76 and 269,406.40

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Solution

The fourth proportional to 868,460.78, 1,302,628.76 and 269,406.40 is: 404,090.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,460.78 : 1,302,628.76 = 269,406.40 : x
  2. Step 2: Convert to fraction form
    868,460.78/1,302,628.76 = 269,406.40/x
  3. Step 3: Cross multiply
    868,460.78x = 1,302,628.76 × 269,406.40
  4. Step 4: Simplify right side
    868,460.78x = 350,936,524,768.06
  5. Step 5: Solve for x
    x = 350,936,524,768.06/868,460.78
  6. Step 6: Final answer
    x = 404,090.24

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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.