Home / 860,032.89-1,290,052.17-260,999.01

Finding the Fourth Proportional to 860,032.89, 1,290,052.17 and 260,999.01

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Solution

The fourth proportional to 860,032.89, 1,290,052.17 and 260,999.01 is: 391,499.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,032.89 : 1,290,052.17 = 260,999.01 : x
  2. Step 2: Convert to fraction form
    860,032.89/1,290,052.17 = 260,999.01/x
  3. Step 3: Cross multiply
    860,032.89x = 1,290,052.17 × 260,999.01
  4. Step 4: Simplify right side
    860,032.89x = 336,702,339,218.35
  5. Step 5: Solve for x
    x = 336,702,339,218.35/860,032.89
  6. Step 6: Final answer
    x = 391,499.38

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1.5x scale

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.