Home / 1,321,808.70-1,982,756.16-629,225.40

Finding the Fourth Proportional to 1,321,808.70, 1,982,756.16 and 629,225.40

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Solution

The fourth proportional to 1,321,808.70, 1,982,756.16 and 629,225.40 is: 943,858.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,808.70 : 1,982,756.16 = 629,225.40 : x
  2. Step 2: Convert to fraction form
    1,321,808.70/1,982,756.16 = 629,225.40/x
  3. Step 3: Cross multiply
    1,321,808.70x = 1,982,756.16 × 629,225.40
  4. Step 4: Simplify right side
    1,321,808.70x = 1,247,600,537,878.46
  5. Step 5: Solve for x
    x = 1,247,600,537,878.46/1,321,808.70
  6. Step 6: Final answer
    x = 943,858.62

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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.