Home / 641,051.49-884,591.60-354,565.43

Finding the Fourth Proportional to 641,051.49, 884,591.60 and 354,565.43

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Solution

The fourth proportional to 641,051.49, 884,591.60 and 354,565.43 is: 489,267.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,051.49 : 884,591.60 = 354,565.43 : x
  2. Step 2: Convert to fraction form
    641,051.49/884,591.60 = 354,565.43/x
  3. Step 3: Cross multiply
    641,051.49x = 884,591.60 × 354,565.43
  4. Step 4: Simplify right side
    641,051.49x = 313,645,594,832.60
  5. Step 5: Solve for x
    x = 313,645,594,832.60/641,051.49
  6. Step 6: Final answer
    x = 489,267.40

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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.