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Finding the Fourth Proportional to 986,770.88, 1,477,495.02 and 644,366.12

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Solution

The fourth proportional to 986,770.88, 1,477,495.02 and 644,366.12 is: 964,811.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,770.88 : 1,477,495.02 = 644,366.12 : x
  2. Step 2: Convert to fraction form
    986,770.88/1,477,495.02 = 644,366.12/x
  3. Step 3: Cross multiply
    986,770.88x = 1,477,495.02 × 644,366.12
  4. Step 4: Simplify right side
    986,770.88x = 952,047,733,356.72
  5. Step 5: Solve for x
    x = 952,047,733,356.72/986,770.88
  6. Step 6: Final answer
    x = 964,811.34

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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.