Home / 1,392,274.64-2,088,413.80-381,405.60

Finding the Fourth Proportional to 1,392,274.64, 2,088,413.80 and 381,405.60

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Solution

The fourth proportional to 1,392,274.64, 2,088,413.80 and 381,405.60 is: 572,108.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,274.64 : 2,088,413.80 = 381,405.60 : x
  2. Step 2: Convert to fraction form
    1,392,274.64/2,088,413.80 = 381,405.60/x
  3. Step 3: Cross multiply
    1,392,274.64x = 2,088,413.80 × 381,405.60
  4. Step 4: Simplify right side
    1,392,274.64x = 796,532,718,437.28
  5. Step 5: Solve for x
    x = 796,532,718,437.28/1,392,274.64
  6. Step 6: Final answer
    x = 572,108.90

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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.