Home / 860,463.90-1,290,764.16-261,477.36

Finding the Fourth Proportional to 860,463.90, 1,290,764.16 and 261,477.36

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Solution

The fourth proportional to 860,463.90, 1,290,764.16 and 261,477.36 is: 392,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,463.90 : 1,290,764.16 = 261,477.36 : x
  2. Step 2: Convert to fraction form
    860,463.90/1,290,764.16 = 261,477.36/x
  3. Step 3: Cross multiply
    860,463.90x = 1,290,764.16 × 261,477.36
  4. Step 4: Simplify right side
    860,463.90x = 337,505,604,939.42
  5. Step 5: Solve for x
    x = 337,505,604,939.42/860,463.90
  6. Step 6: Final answer
    x = 392,236.80

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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.