Home / 842,109.28-1,263,664.19-310,004.01

Finding the Fourth Proportional to 842,109.28, 1,263,664.19 and 310,004.01

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Solution

The fourth proportional to 842,109.28, 1,263,664.19 and 310,004.01 is: 465,190.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,109.28 : 1,263,664.19 = 310,004.01 : x
  2. Step 2: Convert to fraction form
    842,109.28/1,263,664.19 = 310,004.01/x
  3. Step 3: Cross multiply
    842,109.28x = 1,263,664.19 × 310,004.01
  4. Step 4: Simplify right side
    842,109.28x = 391,740,966,968.41
  5. Step 5: Solve for x
    x = 391,740,966,968.41/842,109.28
  6. Step 6: Final answer
    x = 465,190.18

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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.