Home / 987,511.32-1,362,876.44-557,819.12

Finding the Fourth Proportional to 987,511.32, 1,362,876.44 and 557,819.12

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Solution

The fourth proportional to 987,511.32, 1,362,876.44 and 557,819.12 is: 769,852.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,511.32 : 1,362,876.44 = 557,819.12 : x
  2. Step 2: Convert to fraction form
    987,511.32/1,362,876.44 = 557,819.12/x
  3. Step 3: Cross multiply
    987,511.32x = 1,362,876.44 × 557,819.12
  4. Step 4: Simplify right side
    987,511.32x = 760,238,529,615.15
  5. Step 5: Solve for x
    x = 760,238,529,615.15/987,511.32
  6. Step 6: Final answer
    x = 769,852.98

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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.