Home / 1,213,413.12-1,820,368.76-360,408.80

Finding the Fourth Proportional to 1,213,413.12, 1,820,368.76 and 360,408.80

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Solution

The fourth proportional to 1,213,413.12, 1,820,368.76 and 360,408.80 is: 540,687.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,413.12 : 1,820,368.76 = 360,408.80 : x
  2. Step 2: Convert to fraction form
    1,213,413.12/1,820,368.76 = 360,408.80/x
  3. Step 3: Cross multiply
    1,213,413.12x = 1,820,368.76 × 360,408.80
  4. Step 4: Simplify right side
    1,213,413.12x = 656,076,920,658.33
  5. Step 5: Solve for x
    x = 656,076,920,658.33/1,213,413.12
  6. Step 6: Final answer
    x = 540,687.18

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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.