Home / 1,403,539.85-1,936,896.57-774,903.78

Finding the Fourth Proportional to 1,403,539.85, 1,936,896.57 and 774,903.78

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Solution

The fourth proportional to 1,403,539.85, 1,936,896.57 and 774,903.78 is: 1,069,373.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,539.85 : 1,936,896.57 = 774,903.78 : x
  2. Step 2: Convert to fraction form
    1,403,539.85/1,936,896.57 = 774,903.78/x
  3. Step 3: Cross multiply
    1,403,539.85x = 1,936,896.57 × 774,903.78
  4. Step 4: Simplify right side
    1,403,539.85x = 1,500,908,473,562.03
  5. Step 5: Solve for x
    x = 1,500,908,473,562.03/1,403,539.85
  6. Step 6: Final answer
    x = 1,069,373.61

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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.