Home / 1,230,078.28-1,845,106.44-388,630

Finding the Fourth Proportional to 1,230,078.28, 1,845,106.44 and 388,630

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Solution

The fourth proportional to 1,230,078.28, 1,845,106.44 and 388,630 is: 582,941.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,078.28 : 1,845,106.44 = 388,630 : x
  2. Step 2: Convert to fraction form
    1,230,078.28/1,845,106.44 = 388,630/x
  3. Step 3: Cross multiply
    1,230,078.28x = 1,845,106.44 × 388,630
  4. Step 4: Simplify right side
    1,230,078.28x = 717,063,715,777.20
  5. Step 5: Solve for x
    x = 717,063,715,777.20/1,230,078.28
  6. Step 6: Final answer
    x = 582,941.53

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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.