Home / 2,979,276-4,111,366.32-1,621,125.60

Finding the Fourth Proportional to 2,979,276, 4,111,366.32 and 1,621,125.60

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Solution

The fourth proportional to 2,979,276, 4,111,366.32 and 1,621,125.60 is: 2,237,134.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979,276 : 4,111,366.32 = 1,621,125.60 : x
  2. Step 2: Convert to fraction form
    2,979,276/4,111,366.32 = 1,621,125.60/x
  3. Step 3: Cross multiply
    2,979,276x = 4,111,366.32 × 1,621,125.60
  4. Step 4: Simplify right side
    2,979,276x = 6,665,041,192,329.79
  5. Step 5: Solve for x
    x = 6,665,041,192,329.79/2,979,276
  6. Step 6: Final answer
    x = 2,237,134.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.