Home / 1,395,393.21-1,925,511-783,426.45

Finding the Fourth Proportional to 1,395,393.21, 1,925,511 and 783,426.45

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Solution

The fourth proportional to 1,395,393.21, 1,925,511 and 783,426.45 is: 1,081,054.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,393.21 : 1,925,511 = 783,426.45 : x
  2. Step 2: Convert to fraction form
    1,395,393.21/1,925,511 = 783,426.45/x
  3. Step 3: Cross multiply
    1,395,393.21x = 1,925,511 × 783,426.45
  4. Step 4: Simplify right side
    1,395,393.21x = 1,508,496,237,538.40
  5. Step 5: Solve for x
    x = 1,508,496,237,538.40/1,395,393.21
  6. Step 6: Final answer
    x = 1,081,054.60

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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.