Home / 860,334.32-1,290,498.60-220,637.36

Finding the Fourth Proportional to 860,334.32, 1,290,498.60 and 220,637.36

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Solution

The fourth proportional to 860,334.32, 1,290,498.60 and 220,637.36 is: 330,955.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,334.32 : 1,290,498.60 = 220,637.36 : x
  2. Step 2: Convert to fraction form
    860,334.32/1,290,498.60 = 220,637.36/x
  3. Step 3: Cross multiply
    860,334.32x = 1,290,498.60 × 220,637.36
  4. Step 4: Simplify right side
    860,334.32x = 284,732,204,187.70
  5. Step 5: Solve for x
    x = 284,732,204,187.70/860,334.32
  6. Step 6: Final answer
    x = 330,955.30

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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.