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Finding the Fourth Proportional to 605,438.40, 835,377.60 and 350,774.40

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Solution

The fourth proportional to 605,438.40, 835,377.60 and 350,774.40 is: 483,994.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,438.40 : 835,377.60 = 350,774.40 : x
  2. Step 2: Convert to fraction form
    605,438.40/835,377.60 = 350,774.40/x
  3. Step 3: Cross multiply
    605,438.40x = 835,377.60 × 350,774.40
  4. Step 4: Simplify right side
    605,438.40x = 293,029,076,413.44
  5. Step 5: Solve for x
    x = 293,029,076,413.44/605,438.40
  6. Step 6: Final answer
    x = 483,994.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.