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Finding the Fourth Proportional to 612,830.44, 845,360.70 and 367,751.80

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Solution

The fourth proportional to 612,830.44, 845,360.70 and 367,751.80 is: 507,290.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,830.44 : 845,360.70 = 367,751.80 : x
  2. Step 2: Convert to fraction form
    612,830.44/845,360.70 = 367,751.80/x
  3. Step 3: Cross multiply
    612,830.44x = 845,360.70 × 367,751.80
  4. Step 4: Simplify right side
    612,830.44x = 310,882,919,074.26
  5. Step 5: Solve for x
    x = 310,882,919,074.26/612,830.44
  6. Step 6: Final answer
    x = 507,290.27

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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.