Home / 715,221.36-1,073,018.61-415,413.72

Finding the Fourth Proportional to 715,221.36, 1,073,018.61 and 415,413.72

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Solution

The fourth proportional to 715,221.36, 1,073,018.61 and 415,413.72 is: 623,228.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,221.36 : 1,073,018.61 = 415,413.72 : x
  2. Step 2: Convert to fraction form
    715,221.36/1,073,018.61 = 415,413.72/x
  3. Step 3: Cross multiply
    715,221.36x = 1,073,018.61 × 415,413.72
  4. Step 4: Simplify right side
    715,221.36x = 445,746,652,409.33
  5. Step 5: Solve for x
    x = 445,746,652,409.33/715,221.36
  6. Step 6: Final answer
    x = 623,228.94

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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.