Home / 1,305,303.40-1,957,955.10-807,639.40

Finding the Fourth Proportional to 1,305,303.40, 1,957,955.10 and 807,639.40

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Solution

The fourth proportional to 1,305,303.40, 1,957,955.10 and 807,639.40 is: 1,211,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,303.40 : 1,957,955.10 = 807,639.40 : x
  2. Step 2: Convert to fraction form
    1,305,303.40/1,957,955.10 = 807,639.40/x
  3. Step 3: Cross multiply
    1,305,303.40x = 1,957,955.10 × 807,639.40
  4. Step 4: Simplify right side
    1,305,303.40x = 1,581,321,682,190.94
  5. Step 5: Solve for x
    x = 1,581,321,682,190.94/1,305,303.40
  6. Step 6: Final answer
    x = 1,211,459.10

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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.