Home / 1,213,356.60-1,819,160.10-681,040.80

Finding the Fourth Proportional to 1,213,356.60, 1,819,160.10 and 681,040.80

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Solution

The fourth proportional to 1,213,356.60, 1,819,160.10 and 681,040.80 is: 1,021,070.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,356.60 : 1,819,160.10 = 681,040.80 : x
  2. Step 2: Convert to fraction form
    1,213,356.60/1,819,160.10 = 681,040.80/x
  3. Step 3: Cross multiply
    1,213,356.60x = 1,819,160.10 × 681,040.80
  4. Step 4: Simplify right side
    1,213,356.60x = 1,238,922,249,832.08
  5. Step 5: Solve for x
    x = 1,238,922,249,832.08/1,213,356.60
  6. Step 6: Final answer
    x = 1,021,070.19

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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.