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Finding the Fourth Proportional to 663,019.80, 992,196.90 and 607,032.60

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Solution

The fourth proportional to 663,019.80, 992,196.90 and 607,032.60 is: 908,413.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,019.80 : 992,196.90 = 607,032.60 : x
  2. Step 2: Convert to fraction form
    663,019.80/992,196.90 = 607,032.60/x
  3. Step 3: Cross multiply
    663,019.80x = 992,196.90 × 607,032.60
  4. Step 4: Simplify right side
    663,019.80x = 602,295,863,918.94
  5. Step 5: Solve for x
    x = 602,295,863,918.94/663,019.80
  6. Step 6: Final answer
    x = 908,413.09

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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.