Home / 859,578.02-1,289,200.26-816,904.19

Finding the Fourth Proportional to 859,578.02, 1,289,200.26 and 816,904.19

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Solution

The fourth proportional to 859,578.02, 1,289,200.26 and 816,904.19 is: 1,225,197.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,578.02 : 1,289,200.26 = 816,904.19 : x
  2. Step 2: Convert to fraction form
    859,578.02/1,289,200.26 = 816,904.19/x
  3. Step 3: Cross multiply
    859,578.02x = 1,289,200.26 × 816,904.19
  4. Step 4: Simplify right side
    859,578.02x = 1,053,153,094,143.09
  5. Step 5: Solve for x
    x = 1,053,153,094,143.09/859,578.02
  6. Step 6: Final answer
    x = 1,225,197.79

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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.