Home / 1,213,956.90-1,821,228.57-455,806.62

Finding the Fourth Proportional to 1,213,956.90, 1,821,228.57 and 455,806.62

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Solution

The fourth proportional to 1,213,956.90, 1,821,228.57 and 455,806.62 is: 683,820.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,956.90 : 1,821,228.57 = 455,806.62 : x
  2. Step 2: Convert to fraction form
    1,213,956.90/1,821,228.57 = 455,806.62/x
  3. Step 3: Cross multiply
    1,213,956.90x = 1,821,228.57 × 455,806.62
  4. Step 4: Simplify right side
    1,213,956.90x = 830,128,038,739.13
  5. Step 5: Solve for x
    x = 830,128,038,739.13/1,213,956.90
  6. Step 6: Final answer
    x = 683,820.03

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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.