Home / 1,918,143.78-2,877,214.86-570,300.54

Finding the Fourth Proportional to 1,918,143.78, 2,877,214.86 and 570,300.54

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Solution

The fourth proportional to 1,918,143.78, 2,877,214.86 and 570,300.54 is: 855,450.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,143.78 : 2,877,214.86 = 570,300.54 : x
  2. Step 2: Convert to fraction form
    1,918,143.78/2,877,214.86 = 570,300.54/x
  3. Step 3: Cross multiply
    1,918,143.78x = 2,877,214.86 × 570,300.54
  4. Step 4: Simplify right side
    1,918,143.78x = 1,640,877,188,354.02
  5. Step 5: Solve for x
    x = 1,640,877,188,354.02/1,918,143.78
  6. Step 6: Final answer
    x = 855,450.57

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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.