Home / 840,485.06-1,159,887.80-458,511.54

Finding the Fourth Proportional to 840,485.06, 1,159,887.80 and 458,511.54

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Solution

The fourth proportional to 840,485.06, 1,159,887.80 and 458,511.54 is: 632,755.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,485.06 : 1,159,887.80 = 458,511.54 : x
  2. Step 2: Convert to fraction form
    840,485.06/1,159,887.80 = 458,511.54/x
  3. Step 3: Cross multiply
    840,485.06x = 1,159,887.80 × 458,511.54
  4. Step 4: Simplify right side
    840,485.06x = 531,821,941,405.21
  5. Step 5: Solve for x
    x = 531,821,941,405.21/840,485.06
  6. Step 6: Final answer
    x = 632,755.97

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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.