Home / 1,379,413.64-2,069,121.28-382,141.64

Finding the Fourth Proportional to 1,379,413.64, 2,069,121.28 and 382,141.64

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Solution

The fourth proportional to 1,379,413.64, 2,069,121.28 and 382,141.64 is: 573,212.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,413.64 : 2,069,121.28 = 382,141.64 : x
  2. Step 2: Convert to fraction form
    1,379,413.64/2,069,121.28 = 382,141.64/x
  3. Step 3: Cross multiply
    1,379,413.64x = 2,069,121.28 × 382,141.64
  4. Step 4: Simplify right side
    1,379,413.64x = 790,697,399,298.10
  5. Step 5: Solve for x
    x = 790,697,399,298.10/1,379,413.64
  6. Step 6: Final answer
    x = 573,212.69

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Double scale
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Similar ratio
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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.