Home / 1,292,314.03-1,783,363.80-809,145.58

Finding the Fourth Proportional to 1,292,314.03, 1,783,363.80 and 809,145.58

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Solution

The fourth proportional to 1,292,314.03, 1,783,363.80 and 809,145.58 is: 1,116,602.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,314.03 : 1,783,363.80 = 809,145.58 : x
  2. Step 2: Convert to fraction form
    1,292,314.03/1,783,363.80 = 809,145.58/x
  3. Step 3: Cross multiply
    1,292,314.03x = 1,783,363.80 × 809,145.58
  4. Step 4: Simplify right side
    1,292,314.03x = 1,443,000,936,302.00
  5. Step 5: Solve for x
    x = 1,443,000,936,302.00/1,292,314.03
  6. Step 6: Final answer
    x = 1,116,602.39

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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.