Home / 1,000,321.20-1,499,461.20-494,103.60

Finding the Fourth Proportional to 1,000,321.20, 1,499,461.20 and 494,103.60

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Solution

The fourth proportional to 1,000,321.20, 1,499,461.20 and 494,103.60 is: 740,651.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,321.20 : 1,499,461.20 = 494,103.60 : x
  2. Step 2: Convert to fraction form
    1,000,321.20/1,499,461.20 = 494,103.60/x
  3. Step 3: Cross multiply
    1,000,321.20x = 1,499,461.20 × 494,103.60
  4. Step 4: Simplify right side
    1,000,321.20x = 740,889,176,980.32
  5. Step 5: Solve for x
    x = 740,889,176,980.32/1,000,321.20
  6. Step 6: Final answer
    x = 740,651.28

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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.