Home / 860,012.24-1,290,029.88-299,057.36

Finding the Fourth Proportional to 860,012.24, 1,290,029.88 and 299,057.36

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Solution

The fourth proportional to 860,012.24, 1,290,029.88 and 299,057.36 is: 448,590.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,012.24 : 1,290,029.88 = 299,057.36 : x
  2. Step 2: Convert to fraction form
    860,012.24/1,290,029.88 = 299,057.36/x
  3. Step 3: Cross multiply
    860,012.24x = 1,290,029.88 × 299,057.36
  4. Step 4: Simplify right side
    860,012.24x = 385,792,930,233.92
  5. Step 5: Solve for x
    x = 385,792,930,233.92/860,012.24
  6. Step 6: Final answer
    x = 448,590.05

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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.