Home / 748,413.12-1,122,484.32-215,803.20

Finding the Fourth Proportional to 748,413.12, 1,122,484.32 and 215,803.20

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Solution

The fourth proportional to 748,413.12, 1,122,484.32 and 215,803.20 is: 323,665.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,413.12 : 1,122,484.32 = 215,803.20 : x
  2. Step 2: Convert to fraction form
    748,413.12/1,122,484.32 = 215,803.20/x
  3. Step 3: Cross multiply
    748,413.12x = 1,122,484.32 × 215,803.20
  4. Step 4: Simplify right side
    748,413.12x = 242,235,708,205.82
  5. Step 5: Solve for x
    x = 242,235,708,205.82/748,413.12
  6. Step 6: Final answer
    x = 323,665.77

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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.