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Finding the Fourth Proportional to 634,657.44, 875,782.80 and 348,170.88

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Solution

The fourth proportional to 634,657.44, 875,782.80 and 348,170.88 is: 480,451.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,657.44 : 875,782.80 = 348,170.88 : x
  2. Step 2: Convert to fraction form
    634,657.44/875,782.80 = 348,170.88/x
  3. Step 3: Cross multiply
    634,657.44x = 875,782.80 × 348,170.88
  4. Step 4: Simplify right side
    634,657.44x = 304,922,068,164.86
  5. Step 5: Solve for x
    x = 304,922,068,164.86/634,657.44
  6. Step 6: Final answer
    x = 480,451.42

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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.