Home / 670,615.20-1,005,922.80-316,321.20

Finding the Fourth Proportional to 670,615.20, 1,005,922.80 and 316,321.20

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Solution

The fourth proportional to 670,615.20, 1,005,922.80 and 316,321.20 is: 474,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,615.20 : 1,005,922.80 = 316,321.20 : x
  2. Step 2: Convert to fraction form
    670,615.20/1,005,922.80 = 316,321.20/x
  3. Step 3: Cross multiply
    670,615.20x = 1,005,922.80 × 316,321.20
  4. Step 4: Simplify right side
    670,615.20x = 318,194,707,203.36
  5. Step 5: Solve for x
    x = 318,194,707,203.36/670,615.20
  6. Step 6: Final answer
    x = 474,481.80

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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.