Home / 2,979,306-4,111,442.28-1,621,188.72

Finding the Fourth Proportional to 2,979,306, 4,111,442.28 and 1,621,188.72

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Solution

The fourth proportional to 2,979,306, 4,111,442.28 and 1,621,188.72 is: 2,237,240.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979,306 : 4,111,442.28 = 1,621,188.72 : x
  2. Step 2: Convert to fraction form
    2,979,306/4,111,442.28 = 1,621,188.72/x
  3. Step 3: Cross multiply
    2,979,306x = 4,111,442.28 × 1,621,188.72
  4. Step 4: Simplify right side
    2,979,306x = 6,665,423,847,267.08
  5. Step 5: Solve for x
    x = 6,665,423,847,267.08/2,979,306
  6. Step 6: Final answer
    x = 2,237,240.43

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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.