Home / 1,578,893.60-2,178,871.62-853,739.58

Finding the Fourth Proportional to 1,578,893.60, 2,178,871.62 and 853,739.58

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Solution

The fourth proportional to 1,578,893.60, 2,178,871.62 and 853,739.58 is: 1,178,159.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,893.60 : 2,178,871.62 = 853,739.58 : x
  2. Step 2: Convert to fraction form
    1,578,893.60/2,178,871.62 = 853,739.58/x
  3. Step 3: Cross multiply
    1,578,893.60x = 2,178,871.62 × 853,739.58
  4. Step 4: Simplify right side
    1,578,893.60x = 1,860,188,932,972.71
  5. Step 5: Solve for x
    x = 1,860,188,932,972.71/1,578,893.60
  6. Step 6: Final answer
    x = 1,178,159.78

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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.