Home / 867,989.39-1,300,743.39-488,112.73

Finding the Fourth Proportional to 867,989.39, 1,300,743.39 and 488,112.73

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Solution

The fourth proportional to 867,989.39, 1,300,743.39 and 488,112.73 is: 731,471.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,989.39 : 1,300,743.39 = 488,112.73 : x
  2. Step 2: Convert to fraction form
    867,989.39/1,300,743.39 = 488,112.73/x
  3. Step 3: Cross multiply
    867,989.39x = 1,300,743.39 × 488,112.73
  4. Step 4: Simplify right side
    867,989.39x = 634,909,408,899.15
  5. Step 5: Solve for x
    x = 634,909,408,899.15/867,989.39
  6. Step 6: Final answer
    x = 731,471.39

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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.