Home / 829,661.73-1,244,879.91-430,084.55

Finding the Fourth Proportional to 829,661.73, 1,244,879.91 and 430,084.55

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Solution

The fourth proportional to 829,661.73, 1,244,879.91 and 430,084.55 is: 645,327.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,661.73 : 1,244,879.91 = 430,084.55 : x
  2. Step 2: Convert to fraction form
    829,661.73/1,244,879.91 = 430,084.55/x
  3. Step 3: Cross multiply
    829,661.73x = 1,244,879.91 × 430,084.55
  4. Step 4: Simplify right side
    829,661.73x = 535,403,609,671.99
  5. Step 5: Solve for x
    x = 535,403,609,671.99/829,661.73
  6. Step 6: Final answer
    x = 645,327.60

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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.