Home / 2,910,279.40-4,016,255.72-1,621,140.28

Finding the Fourth Proportional to 2,910,279.40, 4,016,255.72 and 1,621,140.28

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Solution

The fourth proportional to 2,910,279.40, 4,016,255.72 and 1,621,140.28 is: 2,237,212.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910,279.40 : 4,016,255.72 = 1,621,140.28 : x
  2. Step 2: Convert to fraction form
    2,910,279.40/4,016,255.72 = 1,621,140.28/x
  3. Step 3: Cross multiply
    2,910,279.40x = 4,016,255.72 × 1,621,140.28
  4. Step 4: Simplify right side
    2,910,279.40x = 6,510,913,922,472.40
  5. Step 5: Solve for x
    x = 6,510,913,922,472.40/2,910,279.40
  6. Step 6: Final answer
    x = 2,237,212.66

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1.5x scale

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.