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Finding the Fourth Proportional to 634,628.82, 875,810.52 and 348,157.34

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Solution

The fourth proportional to 634,628.82, 875,810.52 and 348,157.34 is: 480,469.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,628.82 : 875,810.52 = 348,157.34 : x
  2. Step 2: Convert to fraction form
    634,628.82/875,810.52 = 348,157.34/x
  3. Step 3: Cross multiply
    634,628.82x = 875,810.52 × 348,157.34
  4. Step 4: Simplify right side
    634,628.82x = 304,919,860,987.22
  5. Step 5: Solve for x
    x = 304,919,860,987.22/634,628.82
  6. Step 6: Final answer
    x = 480,469.61

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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.