Home / 759,400.40-1,139,100.60-404,231.60

Finding the Fourth Proportional to 759,400.40, 1,139,100.60 and 404,231.60

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Solution

The fourth proportional to 759,400.40, 1,139,100.60 and 404,231.60 is: 606,347.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,400.40 : 1,139,100.60 = 404,231.60 : x
  2. Step 2: Convert to fraction form
    759,400.40/1,139,100.60 = 404,231.60/x
  3. Step 3: Cross multiply
    759,400.40x = 1,139,100.60 × 404,231.60
  4. Step 4: Simplify right side
    759,400.40x = 460,460,458,098.96
  5. Step 5: Solve for x
    x = 460,460,458,098.96/759,400.40
  6. Step 6: Final answer
    x = 606,347.40

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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.