Home / 641,215.96-884,829.25-354,729.89

Finding the Fourth Proportional to 641,215.96, 884,829.25 and 354,729.89

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Solution

The fourth proportional to 641,215.96, 884,829.25 and 354,729.89 is: 489,500.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,215.96 : 884,829.25 = 354,729.89 : x
  2. Step 2: Convert to fraction form
    641,215.96/884,829.25 = 354,729.89/x
  3. Step 3: Cross multiply
    641,215.96x = 884,829.25 × 354,729.89
  4. Step 4: Simplify right side
    641,215.96x = 313,875,385,176.77
  5. Step 5: Solve for x
    x = 313,875,385,176.77/641,215.96
  6. Step 6: Final answer
    x = 489,500.27

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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.