Home / 2,605,379.40-3,907,881.81-808,216.20

Finding the Fourth Proportional to 2,605,379.40, 3,907,881.81 and 808,216.20

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Solution

The fourth proportional to 2,605,379.40, 3,907,881.81 and 808,216.20 is: 1,212,266.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605,379.40 : 3,907,881.81 = 808,216.20 : x
  2. Step 2: Convert to fraction form
    2,605,379.40/3,907,881.81 = 808,216.20/x
  3. Step 3: Cross multiply
    2,605,379.40x = 3,907,881.81 × 808,216.20
  4. Step 4: Simplify right side
    2,605,379.40x = 3,158,413,386,527.32
  5. Step 5: Solve for x
    x = 3,158,413,386,527.32/2,605,379.40
  6. Step 6: Final answer
    x = 1,212,266.20

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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.