Home / 1,159,607.21-1,600,203.96-643,355.61

Finding the Fourth Proportional to 1,159,607.21, 1,600,203.96 and 643,355.61

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Solution

The fourth proportional to 1,159,607.21, 1,600,203.96 and 643,355.61 is: 887,800.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,607.21 : 1,600,203.96 = 643,355.61 : x
  2. Step 2: Convert to fraction form
    1,159,607.21/1,600,203.96 = 643,355.61/x
  3. Step 3: Cross multiply
    1,159,607.21x = 1,600,203.96 × 643,355.61
  4. Step 4: Simplify right side
    1,159,607.21x = 1,029,500,194,810.22
  5. Step 5: Solve for x
    x = 1,029,500,194,810.22/1,159,607.21
  6. Step 6: Final answer
    x = 887,800.79

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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.