Home / 990,793.20-1,486,187.06-280,827.40

Finding the Fourth Proportional to 990,793.20, 1,486,187.06 and 280,827.40

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Solution

The fourth proportional to 990,793.20, 1,486,187.06 and 280,827.40 is: 421,240.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,793.20 : 1,486,187.06 = 280,827.40 : x
  2. Step 2: Convert to fraction form
    990,793.20/1,486,187.06 = 280,827.40/x
  3. Step 3: Cross multiply
    990,793.20x = 1,486,187.06 × 280,827.40
  4. Step 4: Simplify right side
    990,793.20x = 417,362,047,973.44
  5. Step 5: Solve for x
    x = 417,362,047,973.44/990,793.20
  6. Step 6: Final answer
    x = 421,240.32

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1.5x scale

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.