Home / 753,413.90-1,129,136.70-303,766.70

Finding the Fourth Proportional to 753,413.90, 1,129,136.70 and 303,766.70

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Solution

The fourth proportional to 753,413.90, 1,129,136.70 and 303,766.70 is: 455,253.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,413.90 : 1,129,136.70 = 303,766.70 : x
  2. Step 2: Convert to fraction form
    753,413.90/1,129,136.70 = 303,766.70/x
  3. Step 3: Cross multiply
    753,413.90x = 1,129,136.70 × 303,766.70
  4. Step 4: Simplify right side
    753,413.90x = 342,994,129,207.89
  5. Step 5: Solve for x
    x = 342,994,129,207.89/753,413.90
  6. Step 6: Final answer
    x = 455,253.25

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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.