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Finding the Fourth Proportional to 1,119,887.60, 1,683,978.60 and 937,410.80

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Solution

The fourth proportional to 1,119,887.60, 1,683,978.60 and 937,410.80 is: 1,409,587.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,887.60 : 1,683,978.60 = 937,410.80 : x
  2. Step 2: Convert to fraction form
    1,119,887.60/1,683,978.60 = 937,410.80/x
  3. Step 3: Cross multiply
    1,119,887.60x = 1,683,978.60 × 937,410.80
  4. Step 4: Simplify right side
    1,119,887.60x = 1,578,579,726,608.88
  5. Step 5: Solve for x
    x = 1,578,579,726,608.88/1,119,887.60
  6. Step 6: Final answer
    x = 1,409,587.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.