Home / 2,113,087.62-2,912,825.40-1,295,775.78

Finding the Fourth Proportional to 2,113,087.62, 2,912,825.40 and 1,295,775.78

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Solution

The fourth proportional to 2,113,087.62, 2,912,825.40 and 1,295,775.78 is: 1,786,186.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113,087.62 : 2,912,825.40 = 1,295,775.78 : x
  2. Step 2: Convert to fraction form
    2,113,087.62/2,912,825.40 = 1,295,775.78/x
  3. Step 3: Cross multiply
    2,113,087.62x = 2,912,825.40 × 1,295,775.78
  4. Step 4: Simplify right side
    2,113,087.62x = 3,774,368,604,688.81
  5. Step 5: Solve for x
    x = 3,774,368,604,688.81/2,113,087.62
  6. Step 6: Final answer
    x = 1,786,186.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.