Home / 462,619.74-638,168.99-281,387.10

Finding the Fourth Proportional to 462,619.74, 638,168.99 and 281,387.10

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Solution

The fourth proportional to 462,619.74, 638,168.99 and 281,387.10 is: 388,164.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,619.74 : 638,168.99 = 281,387.10 : x
  2. Step 2: Convert to fraction form
    462,619.74/638,168.99 = 281,387.10/x
  3. Step 3: Cross multiply
    462,619.74x = 638,168.99 × 281,387.10
  4. Step 4: Simplify right side
    462,619.74x = 179,572,519,999.09
  5. Step 5: Solve for x
    x = 179,572,519,999.09/462,619.74
  6. Step 6: Final answer
    x = 388,164.41

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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.