Home / 641,280.08-884,992.56-354,795.50

Finding the Fourth Proportional to 641,280.08, 884,992.56 and 354,795.50

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Solution

The fourth proportional to 641,280.08, 884,992.56 and 354,795.50 is: 489,632.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,280.08 : 884,992.56 = 354,795.50 : x
  2. Step 2: Convert to fraction form
    641,280.08/884,992.56 = 354,795.50/x
  3. Step 3: Cross multiply
    641,280.08x = 884,992.56 × 354,795.50
  4. Step 4: Simplify right side
    641,280.08x = 313,991,377,821.48
  5. Step 5: Solve for x
    x = 313,991,377,821.48/641,280.08
  6. Step 6: Final answer
    x = 489,632.20

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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.