Home / 1,348,334.36-2,021,719.08-638,356.40

Finding the Fourth Proportional to 1,348,334.36, 2,021,719.08 and 638,356.40

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Solution

The fourth proportional to 1,348,334.36, 2,021,719.08 and 638,356.40 is: 957,164.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,334.36 : 2,021,719.08 = 638,356.40 : x
  2. Step 2: Convert to fraction form
    1,348,334.36/2,021,719.08 = 638,356.40/x
  3. Step 3: Cross multiply
    1,348,334.36x = 2,021,719.08 × 638,356.40
  4. Step 4: Simplify right side
    1,348,334.36x = 1,290,577,313,720.11
  5. Step 5: Solve for x
    x = 1,290,577,313,720.11/1,348,334.36
  6. Step 6: Final answer
    x = 957,164.15

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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.