Home / 1,382,685.40-2,074,028.10-385,413.40

Finding the Fourth Proportional to 1,382,685.40, 2,074,028.10 and 385,413.40

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Solution

The fourth proportional to 1,382,685.40, 2,074,028.10 and 385,413.40 is: 578,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,685.40 : 2,074,028.10 = 385,413.40 : x
  2. Step 2: Convert to fraction form
    1,382,685.40/2,074,028.10 = 385,413.40/x
  3. Step 3: Cross multiply
    1,382,685.40x = 2,074,028.10 × 385,413.40
  4. Step 4: Simplify right side
    1,382,685.40x = 799,358,221,716.54
  5. Step 5: Solve for x
    x = 799,358,221,716.54/1,382,685.40
  6. Step 6: Final answer
    x = 578,120.10

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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.