Home / 898,413.70-1,347,620.55-426,021.70

Finding the Fourth Proportional to 898,413.70, 1,347,620.55 and 426,021.70

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Solution

The fourth proportional to 898,413.70, 1,347,620.55 and 426,021.70 is: 639,032.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,413.70 : 1,347,620.55 = 426,021.70 : x
  2. Step 2: Convert to fraction form
    898,413.70/1,347,620.55 = 426,021.70/x
  3. Step 3: Cross multiply
    898,413.70x = 1,347,620.55 × 426,021.70
  4. Step 4: Simplify right side
    898,413.70x = 574,115,597,665.94
  5. Step 5: Solve for x
    x = 574,115,597,665.94/898,413.70
  6. Step 6: Final answer
    x = 639,032.55

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Double scale
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Similar ratio
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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.