Home / 860,741.10-1,289,556.45-761,208.30

Finding the Fourth Proportional to 860,741.10, 1,289,556.45 and 761,208.30

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Solution

The fourth proportional to 860,741.10, 1,289,556.45 and 761,208.30 is: 1,140,437.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,741.10 : 1,289,556.45 = 761,208.30 : x
  2. Step 2: Convert to fraction form
    860,741.10/1,289,556.45 = 761,208.30/x
  3. Step 3: Cross multiply
    860,741.10x = 1,289,556.45 × 761,208.30
  4. Step 4: Simplify right side
    860,741.10x = 981,621,073,058.54
  5. Step 5: Solve for x
    x = 981,621,073,058.54/860,741.10
  6. Step 6: Final answer
    x = 1,140,437.09

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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.