Home / 1,297,140.40-1,943,086.20-898,231.60

Finding the Fourth Proportional to 1,297,140.40, 1,943,086.20 and 898,231.60

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Solution

The fourth proportional to 1,297,140.40, 1,943,086.20 and 898,231.60 is: 1,345,530.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,140.40 : 1,943,086.20 = 898,231.60 : x
  2. Step 2: Convert to fraction form
    1,297,140.40/1,943,086.20 = 898,231.60/x
  3. Step 3: Cross multiply
    1,297,140.40x = 1,943,086.20 × 898,231.60
  4. Step 4: Simplify right side
    1,297,140.40x = 1,745,341,426,363.92
  5. Step 5: Solve for x
    x = 1,745,341,426,363.92/1,297,140.40
  6. Step 6: Final answer
    x = 1,345,530.08

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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.