Home / 785,930.07-1,084,583.49-428,234.07

Finding the Fourth Proportional to 785,930.07, 1,084,583.49 and 428,234.07

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Solution

The fourth proportional to 785,930.07, 1,084,583.49 and 428,234.07 is: 590,963.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,930.07 : 1,084,583.49 = 428,234.07 : x
  2. Step 2: Convert to fraction form
    785,930.07/1,084,583.49 = 428,234.07/x
  3. Step 3: Cross multiply
    785,930.07x = 1,084,583.49 × 428,234.07
  4. Step 4: Simplify right side
    785,930.07x = 464,455,602,177.50
  5. Step 5: Solve for x
    x = 464,455,602,177.50/785,930.07
  6. Step 6: Final answer
    x = 590,963.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.