Home / 607,721.82-911,627.06-208,359.21

Finding the Fourth Proportional to 607,721.82, 911,627.06 and 208,359.21

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Solution

The fourth proportional to 607,721.82, 911,627.06 and 208,359.21 is: 312,554.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,721.82 : 911,627.06 = 208,359.21 : x
  2. Step 2: Convert to fraction form
    607,721.82/911,627.06 = 208,359.21/x
  3. Step 3: Cross multiply
    607,721.82x = 911,627.06 × 208,359.21
  4. Step 4: Simplify right side
    607,721.82x = 189,945,892,994.43
  5. Step 5: Solve for x
    x = 189,945,892,994.43/607,721.82
  6. Step 6: Final answer
    x = 312,554.01

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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.