Home / 746,413.80-1,119,620.70-213,903.60

Finding the Fourth Proportional to 746,413.80, 1,119,620.70 and 213,903.60

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Solution

The fourth proportional to 746,413.80, 1,119,620.70 and 213,903.60 is: 320,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,413.80 : 1,119,620.70 = 213,903.60 : x
  2. Step 2: Convert to fraction form
    746,413.80/1,119,620.70 = 213,903.60/x
  3. Step 3: Cross multiply
    746,413.80x = 1,119,620.70 × 213,903.60
  4. Step 4: Simplify right side
    746,413.80x = 239,490,898,364.52
  5. Step 5: Solve for x
    x = 239,490,898,364.52/746,413.80
  6. Step 6: Final answer
    x = 320,855.40

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Half scale
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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.