Home / 1,318,837.20-1,978,061.40-372,303.60

Finding the Fourth Proportional to 1,318,837.20, 1,978,061.40 and 372,303.60

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Solution

The fourth proportional to 1,318,837.20, 1,978,061.40 and 372,303.60 is: 558,400.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,837.20 : 1,978,061.40 = 372,303.60 : x
  2. Step 2: Convert to fraction form
    1,318,837.20/1,978,061.40 = 372,303.60/x
  3. Step 3: Cross multiply
    1,318,837.20x = 1,978,061.40 × 372,303.60
  4. Step 4: Simplify right side
    1,318,837.20x = 736,439,380,241.04
  5. Step 5: Solve for x
    x = 736,439,380,241.04/1,318,837.20
  6. Step 6: Final answer
    x = 558,400.52

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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.