Home / 980,263.20-1,470,394.80-389,287.20

Finding the Fourth Proportional to 980,263.20, 1,470,394.80 and 389,287.20

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Solution

The fourth proportional to 980,263.20, 1,470,394.80 and 389,287.20 is: 583,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,263.20 : 1,470,394.80 = 389,287.20 : x
  2. Step 2: Convert to fraction form
    980,263.20/1,470,394.80 = 389,287.20/x
  3. Step 3: Cross multiply
    980,263.20x = 1,470,394.80 × 389,287.20
  4. Step 4: Simplify right side
    980,263.20x = 572,405,874,586.56
  5. Step 5: Solve for x
    x = 572,405,874,586.56/980,263.20
  6. Step 6: Final answer
    x = 583,930.80

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Similar ratio
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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.