Home / 1,022,825.78-1,531,968.74-661,835.91

Finding the Fourth Proportional to 1,022,825.78, 1,531,968.74 and 661,835.91

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Solution

The fourth proportional to 1,022,825.78, 1,531,968.74 and 661,835.91 is: 991,285.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,825.78 : 1,531,968.74 = 661,835.91 : x
  2. Step 2: Convert to fraction form
    1,022,825.78/1,531,968.74 = 661,835.91/x
  3. Step 3: Cross multiply
    1,022,825.78x = 1,531,968.74 × 661,835.91
  4. Step 4: Simplify right side
    1,022,825.78x = 1,013,911,921,820.27
  5. Step 5: Solve for x
    x = 1,013,911,921,820.27/1,022,825.78
  6. Step 6: Final answer
    x = 991,285.07

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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.