Home / 1,410,438.47-2,115,695.63-399,456.02

Finding the Fourth Proportional to 1,410,438.47, 2,115,695.63 and 399,456.02

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Solution

The fourth proportional to 1,410,438.47, 2,115,695.63 and 399,456.02 is: 599,194.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410,438.47 : 2,115,695.63 = 399,456.02 : x
  2. Step 2: Convert to fraction form
    1,410,438.47/2,115,695.63 = 399,456.02/x
  3. Step 3: Cross multiply
    1,410,438.47x = 2,115,695.63 × 399,456.02
  4. Step 4: Simplify right side
    1,410,438.47x = 845,127,359,183.15
  5. Step 5: Solve for x
    x = 845,127,359,183.15/1,410,438.47
  6. Step 6: Final answer
    x = 599,194.78

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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.