Home / 679,137.80-1,017,962.70-341,640.20

Finding the Fourth Proportional to 679,137.80, 1,017,962.70 and 341,640.20

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Solution

The fourth proportional to 679,137.80, 1,017,962.70 and 341,640.20 is: 512,086.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,137.80 : 1,017,962.70 = 341,640.20 : x
  2. Step 2: Convert to fraction form
    679,137.80/1,017,962.70 = 341,640.20/x
  3. Step 3: Cross multiply
    679,137.80x = 1,017,962.70 × 341,640.20
  4. Step 4: Simplify right side
    679,137.80x = 347,776,980,420.54
  5. Step 5: Solve for x
    x = 347,776,980,420.54/679,137.80
  6. Step 6: Final answer
    x = 512,086.03

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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.