Home / 860,131.74-1,289,345.36-403,906.26

Finding the Fourth Proportional to 860,131.74, 1,289,345.36 and 403,906.26

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Solution

The fourth proportional to 860,131.74, 1,289,345.36 and 403,906.26 is: 605,459.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,131.74 : 1,289,345.36 = 403,906.26 : x
  2. Step 2: Convert to fraction form
    860,131.74/1,289,345.36 = 403,906.26/x
  3. Step 3: Cross multiply
    860,131.74x = 1,289,345.36 × 403,906.26
  4. Step 4: Simplify right side
    860,131.74x = 520,774,662,205.95
  5. Step 5: Solve for x
    x = 520,774,662,205.95/860,131.74
  6. Step 6: Final answer
    x = 605,459.18

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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.