Home / 989,125.60-1,483,040.40-389,725.60

Finding the Fourth Proportional to 989,125.60, 1,483,040.40 and 389,725.60

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Solution

The fourth proportional to 989,125.60, 1,483,040.40 and 389,725.60 is: 584,333.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,125.60 : 1,483,040.40 = 389,725.60 : x
  2. Step 2: Convert to fraction form
    989,125.60/1,483,040.40 = 389,725.60/x
  3. Step 3: Cross multiply
    989,125.60x = 1,483,040.40 × 389,725.60
  4. Step 4: Simplify right side
    989,125.60x = 577,978,809,714.24
  5. Step 5: Solve for x
    x = 577,978,809,714.24/989,125.60
  6. Step 6: Final answer
    x = 584,333.08

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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.