Home / 389,623.60-584,435.40-248,618.80

Finding the Fourth Proportional to 389,623.60, 584,435.40 and 248,618.80

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Solution

The fourth proportional to 389,623.60, 584,435.40 and 248,618.80 is: 372,928.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,623.60 : 584,435.40 = 248,618.80 : x
  2. Step 2: Convert to fraction form
    389,623.60/584,435.40 = 248,618.80/x
  3. Step 3: Cross multiply
    389,623.60x = 584,435.40 × 248,618.80
  4. Step 4: Simplify right side
    389,623.60x = 145,301,627,825.52
  5. Step 5: Solve for x
    x = 145,301,627,825.52/389,623.60
  6. Step 6: Final answer
    x = 372,928.20

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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.