Home / 1,021,867.38-1,533,413.43-422,836.74

Finding the Fourth Proportional to 1,021,867.38, 1,533,413.43 and 422,836.74

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Solution

The fourth proportional to 1,021,867.38, 1,533,413.43 and 422,836.74 is: 634,508.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,867.38 : 1,533,413.43 = 422,836.74 : x
  2. Step 2: Convert to fraction form
    1,021,867.38/1,533,413.43 = 422,836.74/x
  3. Step 3: Cross multiply
    1,021,867.38x = 1,533,413.43 × 422,836.74
  4. Step 4: Simplify right side
    1,021,867.38x = 648,383,535,813.42
  5. Step 5: Solve for x
    x = 648,383,535,813.42/1,021,867.38
  6. Step 6: Final answer
    x = 634,508.50

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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.