Home / 1,329,427.80-1,994,141.70-767,806.20

Finding the Fourth Proportional to 1,329,427.80, 1,994,141.70 and 767,806.20

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Solution

The fourth proportional to 1,329,427.80, 1,994,141.70 and 767,806.20 is: 1,151,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,427.80 : 1,994,141.70 = 767,806.20 : x
  2. Step 2: Convert to fraction form
    1,329,427.80/1,994,141.70 = 767,806.20/x
  3. Step 3: Cross multiply
    1,329,427.80x = 1,994,141.70 × 767,806.20
  4. Step 4: Simplify right side
    1,329,427.80x = 1,531,114,360,938.54
  5. Step 5: Solve for x
    x = 1,531,114,360,938.54/1,329,427.80
  6. Step 6: Final answer
    x = 1,151,709.30

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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.