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Finding the Fourth Proportional to 641,050.74, 884,590.57 and 354,564.68

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Solution

The fourth proportional to 641,050.74, 884,590.57 and 354,564.68 is: 489,266.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,050.74 : 884,590.57 = 354,564.68 : x
  2. Step 2: Convert to fraction form
    641,050.74/884,590.57 = 354,564.68/x
  3. Step 3: Cross multiply
    641,050.74x = 884,590.57 × 354,564.68
  4. Step 4: Simplify right side
    641,050.74x = 313,644,567,073.70
  5. Step 5: Solve for x
    x = 313,644,567,073.70/641,050.74
  6. Step 6: Final answer
    x = 489,266.37

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Double scale
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1.5x scale

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.