Home / 5,318,918.75-7,978,378.14-1,329,830.75

Finding the Fourth Proportional to 5,318,918.75, 7,978,378.14 and 1,329,830.75

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Solution

The fourth proportional to 5,318,918.75, 7,978,378.14 and 1,329,830.75 is: 1,994,746.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318,918.75 : 7,978,378.14 = 1,329,830.75 : x
  2. Step 2: Convert to fraction form
    5,318,918.75/7,978,378.14 = 1,329,830.75/x
  3. Step 3: Cross multiply
    5,318,918.75x = 7,978,378.14 × 1,329,830.75
  4. Step 4: Simplify right side
    5,318,918.75x = 10,609,892,585,699.80
  5. Step 5: Solve for x
    x = 10,609,892,585,699.80/5,318,918.75
  6. Step 6: Final answer
    x = 1,994,746.13

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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.