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Finding the Fourth Proportional to 641,094.98, 884,655.96 and 354,543.74

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Solution

The fourth proportional to 641,094.98, 884,655.96 and 354,543.74 is: 489,239.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,094.98 : 884,655.96 = 354,543.74 : x
  2. Step 2: Convert to fraction form
    641,094.98/884,655.96 = 354,543.74/x
  3. Step 3: Cross multiply
    641,094.98x = 884,655.96 × 354,543.74
  4. Step 4: Simplify right side
    641,094.98x = 313,649,232,671.69
  5. Step 5: Solve for x
    x = 313,649,232,671.69/641,094.98
  6. Step 6: Final answer
    x = 489,239.88

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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.