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Finding the Fourth Proportional to 664,413.94, 916,878.45 and 362,610.10

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Solution

The fourth proportional to 664,413.94, 916,878.45 and 362,610.10 is: 500,394.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,413.94 : 916,878.45 = 362,610.10 : x
  2. Step 2: Convert to fraction form
    664,413.94/916,878.45 = 362,610.10/x
  3. Step 3: Cross multiply
    664,413.94x = 916,878.45 × 362,610.10
  4. Step 4: Simplify right side
    664,413.94x = 332,469,386,442.35
  5. Step 5: Solve for x
    x = 332,469,386,442.35/664,413.94
  6. Step 6: Final answer
    x = 500,394.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.