Home / 990,503.40-1,485,755.10-931,454.40

Finding the Fourth Proportional to 990,503.40, 1,485,755.10 and 931,454.40

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Solution

The fourth proportional to 990,503.40, 1,485,755.10 and 931,454.40 is: 1,397,181.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,503.40 : 1,485,755.10 = 931,454.40 : x
  2. Step 2: Convert to fraction form
    990,503.40/1,485,755.10 = 931,454.40/x
  3. Step 3: Cross multiply
    990,503.40x = 1,485,755.10 × 931,454.40
  4. Step 4: Simplify right side
    990,503.40x = 1,383,913,125,217.44
  5. Step 5: Solve for x
    x = 1,383,913,125,217.44/990,503.40
  6. Step 6: Final answer
    x = 1,397,181.60

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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.