Home / 1,819,830.60-2,729,486.70-621,808.20

Finding the Fourth Proportional to 1,819,830.60, 2,729,486.70 and 621,808.20

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Solution

The fourth proportional to 1,819,830.60, 2,729,486.70 and 621,808.20 is: 932,623.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819,830.60 : 2,729,486.70 = 621,808.20 : x
  2. Step 2: Convert to fraction form
    1,819,830.60/2,729,486.70 = 621,808.20/x
  3. Step 3: Cross multiply
    1,819,830.60x = 2,729,486.70 × 621,808.20
  4. Step 4: Simplify right side
    1,819,830.60x = 1,697,217,211,850.94
  5. Step 5: Solve for x
    x = 1,697,217,211,850.94/1,819,830.60
  6. Step 6: Final answer
    x = 932,623.74

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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.