Home / 840,840.81-1,260,511.26-308,237.52

Finding the Fourth Proportional to 840,840.81, 1,260,511.26 and 308,237.52

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Solution

The fourth proportional to 840,840.81, 1,260,511.26 and 308,237.52 is: 462,081.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,840.81 : 1,260,511.26 = 308,237.52 : x
  2. Step 2: Convert to fraction form
    840,840.81/1,260,511.26 = 308,237.52/x
  3. Step 3: Cross multiply
    840,840.81x = 1,260,511.26 × 308,237.52
  4. Step 4: Simplify right side
    840,840.81x = 388,536,864,714.48
  5. Step 5: Solve for x
    x = 388,536,864,714.48/840,840.81
  6. Step 6: Final answer
    x = 462,081.36

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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.