Home / 1,394,219.52-2,090,411.52-919,457.28

Finding the Fourth Proportional to 1,394,219.52, 2,090,411.52 and 919,457.28

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Solution

The fourth proportional to 1,394,219.52, 2,090,411.52 and 919,457.28 is: 1,378,580.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,219.52 : 2,090,411.52 = 919,457.28 : x
  2. Step 2: Convert to fraction form
    1,394,219.52/2,090,411.52 = 919,457.28/x
  3. Step 3: Cross multiply
    1,394,219.52x = 2,090,411.52 × 919,457.28
  4. Step 4: Simplify right side
    1,394,219.52x = 1,922,044,090,259.87
  5. Step 5: Solve for x
    x = 1,922,044,090,259.87/1,394,219.52
  6. Step 6: Final answer
    x = 1,378,580.68

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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.