Home / 860,126.66-1,289,337.77-403,901.21

Finding the Fourth Proportional to 860,126.66, 1,289,337.77 and 403,901.21

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Solution

The fourth proportional to 860,126.66, 1,289,337.77 and 403,901.21 is: 605,451.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,126.66 : 1,289,337.77 = 403,901.21 : x
  2. Step 2: Convert to fraction form
    860,126.66/1,289,337.77 = 403,901.21/x
  3. Step 3: Cross multiply
    860,126.66x = 1,289,337.77 × 403,901.21
  4. Step 4: Simplify right side
    860,126.66x = 520,765,085,401.70
  5. Step 5: Solve for x
    x = 520,765,085,401.70/860,126.66
  6. Step 6: Final answer
    x = 605,451.63

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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.