Home / 739,038.80-1,108,558.20-265,739.60

Finding the Fourth Proportional to 739,038.80, 1,108,558.20 and 265,739.60

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Solution

The fourth proportional to 739,038.80, 1,108,558.20 and 265,739.60 is: 398,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,038.80 : 1,108,558.20 = 265,739.60 : x
  2. Step 2: Convert to fraction form
    739,038.80/1,108,558.20 = 265,739.60/x
  3. Step 3: Cross multiply
    739,038.80x = 1,108,558.20 × 265,739.60
  4. Step 4: Simplify right side
    739,038.80x = 294,587,812,644.72
  5. Step 5: Solve for x
    x = 294,587,812,644.72/739,038.80
  6. Step 6: Final answer
    x = 398,609.40

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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.