Home / 986,770.89-1,477,495.04-644,366.12

Finding the Fourth Proportional to 986,770.89, 1,477,495.04 and 644,366.12

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Solution

The fourth proportional to 986,770.89, 1,477,495.04 and 644,366.12 is: 964,811.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,770.89 : 1,477,495.04 = 644,366.12 : x
  2. Step 2: Convert to fraction form
    986,770.89/1,477,495.04 = 644,366.12/x
  3. Step 3: Cross multiply
    986,770.89x = 1,477,495.04 × 644,366.12
  4. Step 4: Simplify right side
    986,770.89x = 952,047,735,634.74
  5. Step 5: Solve for x
    x = 952,047,735,634.74/986,770.89
  6. Step 6: Final answer
    x = 964,811.33

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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.