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Finding the Fourth Proportional to 634,209.96, 875,203 and 347,729.32

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Solution

The fourth proportional to 634,209.96, 875,203 and 347,729.32 is: 479,862.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,209.96 : 875,203 = 347,729.32 : x
  2. Step 2: Convert to fraction form
    634,209.96/875,203 = 347,729.32/x
  3. Step 3: Cross multiply
    634,209.96x = 875,203 × 347,729.32
  4. Step 4: Simplify right side
    634,209.96x = 304,333,744,051.96
  5. Step 5: Solve for x
    x = 304,333,744,051.96/634,209.96
  6. Step 6: Final answer
    x = 479,862.76

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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.