Home / 826,397.44-1,240,260.48-427,155.28

Finding the Fourth Proportional to 826,397.44, 1,240,260.48 and 427,155.28

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Solution

The fourth proportional to 826,397.44, 1,240,260.48 and 427,155.28 is: 641,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,397.44 : 1,240,260.48 = 427,155.28 : x
  2. Step 2: Convert to fraction form
    826,397.44/1,240,260.48 = 427,155.28/x
  3. Step 3: Cross multiply
    826,397.44x = 1,240,260.48 × 427,155.28
  4. Step 4: Simplify right side
    826,397.44x = 529,783,812,607.33
  5. Step 5: Solve for x
    x = 529,783,812,607.33/826,397.44
  6. Step 6: Final answer
    x = 641,076.30

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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.