Home / 4,920,679.60-7,381,019.40-1,729,409.20

Finding the Fourth Proportional to 4,920,679.60, 7,381,019.40 and 1,729,409.20

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Solution

The fourth proportional to 4,920,679.60, 7,381,019.40 and 1,729,409.20 is: 2,594,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920,679.60 : 7,381,019.40 = 1,729,409.20 : x
  2. Step 2: Convert to fraction form
    4,920,679.60/7,381,019.40 = 1,729,409.20/x
  3. Step 3: Cross multiply
    4,920,679.60x = 7,381,019.40 × 1,729,409.20
  4. Step 4: Simplify right side
    4,920,679.60x = 12,764,802,855,738.48
  5. Step 5: Solve for x
    x = 12,764,802,855,738.48/4,920,679.60
  6. Step 6: Final answer
    x = 2,594,113.80

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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.