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Finding the Fourth Proportional to 634,344.58, 875,407.55 and 347,847.58

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Solution

The fourth proportional to 634,344.58, 875,407.55 and 347,847.58 is: 480,036.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,344.58 : 875,407.55 = 347,847.58 : x
  2. Step 2: Convert to fraction form
    634,344.58/875,407.55 = 347,847.58/x
  3. Step 3: Cross multiply
    634,344.58x = 875,407.55 × 347,847.58
  4. Step 4: Simplify right side
    634,344.58x = 304,508,397,781.23
  5. Step 5: Solve for x
    x = 304,508,397,781.23/634,344.58
  6. Step 6: Final answer
    x = 480,036.26

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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.