Home / 730,439.10-1,095,986.70-330,874.20

Finding the Fourth Proportional to 730,439.10, 1,095,986.70 and 330,874.20

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Solution

The fourth proportional to 730,439.10, 1,095,986.70 and 330,874.20 is: 496,459.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,439.10 : 1,095,986.70 = 330,874.20 : x
  2. Step 2: Convert to fraction form
    730,439.10/1,095,986.70 = 330,874.20/x
  3. Step 3: Cross multiply
    730,439.10x = 1,095,986.70 × 330,874.20
  4. Step 4: Simplify right side
    730,439.10x = 362,633,722,573.14
  5. Step 5: Solve for x
    x = 362,633,722,573.14/730,439.10
  6. Step 6: Final answer
    x = 496,459.90

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Double scale
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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.