Home / 1,382,944.80-2,074,413.60-385,672.80

Finding the Fourth Proportional to 1,382,944.80, 2,074,413.60 and 385,672.80

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Solution

The fourth proportional to 1,382,944.80, 2,074,413.60 and 385,672.80 is: 578,508.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,944.80 : 2,074,413.60 = 385,672.80 : x
  2. Step 2: Convert to fraction form
    1,382,944.80/2,074,413.60 = 385,672.80/x
  3. Step 3: Cross multiply
    1,382,944.80x = 2,074,413.60 × 385,672.80
  4. Step 4: Simplify right side
    1,382,944.80x = 800,044,901,470.08
  5. Step 5: Solve for x
    x = 800,044,901,470.08/1,382,944.80
  6. Step 6: Final answer
    x = 578,508.20

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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.