Home / 679,323.11-1,019,261.34-342,460.85

Finding the Fourth Proportional to 679,323.11, 1,019,261.34 and 342,460.85

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Solution

The fourth proportional to 679,323.11, 1,019,261.34 and 342,460.85 is: 513,830.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,323.11 : 1,019,261.34 = 342,460.85 : x
  2. Step 2: Convert to fraction form
    679,323.11/1,019,261.34 = 342,460.85/x
  3. Step 3: Cross multiply
    679,323.11x = 1,019,261.34 × 342,460.85
  4. Step 4: Simplify right side
    679,323.11x = 349,057,099,772.23
  5. Step 5: Solve for x
    x = 349,057,099,772.23/679,323.11
  6. Step 6: Final answer
    x = 513,830.75

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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.