Home / 388,604.83-582,928.05-122,386.07

Finding the Fourth Proportional to 388,604.83, 582,928.05 and 122,386.07

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Solution

The fourth proportional to 388,604.83, 582,928.05 and 122,386.07 is: 183,585.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,604.83 : 582,928.05 = 122,386.07 : x
  2. Step 2: Convert to fraction form
    388,604.83/582,928.05 = 122,386.07/x
  3. Step 3: Cross multiply
    388,604.83x = 582,928.05 × 122,386.07
  4. Step 4: Simplify right side
    388,604.83x = 71,342,274,130.64
  5. Step 5: Solve for x
    x = 71,342,274,130.64/388,604.83
  6. Step 6: Final answer
    x = 183,585.66

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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.