Home / 1,331,821.58-1,997,111.32-691,953.31

Finding the Fourth Proportional to 1,331,821.58, 1,997,111.32 and 691,953.31

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Solution

The fourth proportional to 1,331,821.58, 1,997,111.32 and 691,953.31 is: 1,037,607.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,821.58 : 1,997,111.32 = 691,953.31 : x
  2. Step 2: Convert to fraction form
    1,331,821.58/1,997,111.32 = 691,953.31/x
  3. Step 3: Cross multiply
    1,331,821.58x = 1,997,111.32 × 691,953.31
  4. Step 4: Simplify right side
    1,331,821.58x = 1,381,907,788,312.47
  5. Step 5: Solve for x
    x = 1,381,907,788,312.47/1,331,821.58
  6. Step 6: Final answer
    x = 1,037,607.30

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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.