Home / 380,736.20-570,413.10-310,233.80

Finding the Fourth Proportional to 380,736.20, 570,413.10 and 310,233.80

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Solution

The fourth proportional to 380,736.20, 570,413.10 and 310,233.80 is: 464,787.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,736.20 : 570,413.10 = 310,233.80 : x
  2. Step 2: Convert to fraction form
    380,736.20/570,413.10 = 310,233.80/x
  3. Step 3: Cross multiply
    380,736.20x = 570,413.10 × 310,233.80
  4. Step 4: Simplify right side
    380,736.20x = 176,961,423,582.78
  5. Step 5: Solve for x
    x = 176,961,423,582.78/380,736.20
  6. Step 6: Final answer
    x = 464,787.49

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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.