Home / 1,862,456.40-2,791,288.44-1,621,584.72

Finding the Fourth Proportional to 1,862,456.40, 2,791,288.44 and 1,621,584.72

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Solution

The fourth proportional to 1,862,456.40, 2,791,288.44 and 1,621,584.72 is: 2,430,290.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862,456.40 : 2,791,288.44 = 1,621,584.72 : x
  2. Step 2: Convert to fraction form
    1,862,456.40/2,791,288.44 = 1,621,584.72/x
  3. Step 3: Cross multiply
    1,862,456.40x = 2,791,288.44 × 1,621,584.72
  4. Step 4: Simplify right side
    1,862,456.40x = 4,526,310,683,416.64
  5. Step 5: Solve for x
    x = 4,526,310,683,416.64/1,862,456.40
  6. Step 6: Final answer
    x = 2,430,290.82

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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.