Home / 860,074.61-1,290,116.03-261,040.95

Finding the Fourth Proportional to 860,074.61, 1,290,116.03 and 261,040.95

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Solution

The fourth proportional to 860,074.61, 1,290,116.03 and 261,040.95 is: 391,562.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,074.61 : 1,290,116.03 = 261,040.95 : x
  2. Step 2: Convert to fraction form
    860,074.61/1,290,116.03 = 261,040.95/x
  3. Step 3: Cross multiply
    860,074.61x = 1,290,116.03 × 261,040.95
  4. Step 4: Simplify right side
    860,074.61x = 336,773,112,776.22
  5. Step 5: Solve for x
    x = 336,773,112,776.22/860,074.61
  6. Step 6: Final answer
    x = 391,562.67

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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.