Home / 1,230,971.60-1,846,630.20-389,435.60

Finding the Fourth Proportional to 1,230,971.60, 1,846,630.20 and 389,435.60

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Solution

The fourth proportional to 1,230,971.60, 1,846,630.20 and 389,435.60 is: 584,208.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,971.60 : 1,846,630.20 = 389,435.60 : x
  2. Step 2: Convert to fraction form
    1,230,971.60/1,846,630.20 = 389,435.60/x
  3. Step 3: Cross multiply
    1,230,971.60x = 1,846,630.20 × 389,435.60
  4. Step 4: Simplify right side
    1,230,971.60x = 719,143,539,915.12
  5. Step 5: Solve for x
    x = 719,143,539,915.12/1,230,971.60
  6. Step 6: Final answer
    x = 584,208.07

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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.