Home / 1,212,784.20-1,818,009.90-942,762.60

Finding the Fourth Proportional to 1,212,784.20, 1,818,009.90 and 942,762.60

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Solution

The fourth proportional to 1,212,784.20, 1,818,009.90 and 942,762.60 is: 1,413,237.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,784.20 : 1,818,009.90 = 942,762.60 : x
  2. Step 2: Convert to fraction form
    1,212,784.20/1,818,009.90 = 942,762.60/x
  3. Step 3: Cross multiply
    1,212,784.20x = 1,818,009.90 × 942,762.60
  4. Step 4: Simplify right side
    1,212,784.20x = 1,713,951,740,149.74
  5. Step 5: Solve for x
    x = 1,713,951,740,149.74/1,212,784.20
  6. Step 6: Final answer
    x = 1,413,237.19

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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.