Home / 451,619.49-623,248.64-247,678.90

Finding the Fourth Proportional to 451,619.49, 623,248.64 and 247,678.90

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Solution

The fourth proportional to 451,619.49, 623,248.64 and 247,678.90 is: 341,804.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,619.49 : 623,248.64 = 247,678.90 : x
  2. Step 2: Convert to fraction form
    451,619.49/623,248.64 = 247,678.90/x
  3. Step 3: Cross multiply
    451,619.49x = 623,248.64 × 247,678.90
  4. Step 4: Simplify right side
    451,619.49x = 154,365,536,343.30
  5. Step 5: Solve for x
    x = 154,365,536,343.30/451,619.49
  6. Step 6: Final answer
    x = 341,804.42

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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.