Home / 3,120,305.40-4,680,458.10-2,734,615.80

Finding the Fourth Proportional to 3,120,305.40, 4,680,458.10 and 2,734,615.80

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Solution

The fourth proportional to 3,120,305.40, 4,680,458.10 and 2,734,615.80 is: 4,101,923.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,305.40 : 4,680,458.10 = 2,734,615.80 : x
  2. Step 2: Convert to fraction form
    3,120,305.40/4,680,458.10 = 2,734,615.80/x
  3. Step 3: Cross multiply
    3,120,305.40x = 4,680,458.10 × 2,734,615.80
  4. Step 4: Simplify right side
    3,120,305.40x = 12,799,254,671,497.98
  5. Step 5: Solve for x
    x = 12,799,254,671,497.98/3,120,305.40
  6. Step 6: Final answer
    x = 4,101,923.70

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1.5x scale

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.