Home / 860,103.90-1,289,827.80-260,865.90

Finding the Fourth Proportional to 860,103.90, 1,289,827.80 and 260,865.90

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Solution

The fourth proportional to 860,103.90, 1,289,827.80 and 260,865.90 is: 391,199.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,103.90 : 1,289,827.80 = 260,865.90 : x
  2. Step 2: Convert to fraction form
    860,103.90/1,289,827.80 = 260,865.90/x
  3. Step 3: Cross multiply
    860,103.90x = 1,289,827.80 × 260,865.90
  4. Step 4: Simplify right side
    860,103.90x = 336,472,089,892.02
  5. Step 5: Solve for x
    x = 336,472,089,892.02/860,103.90
  6. Step 6: Final answer
    x = 391,199.35

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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.