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Finding the Fourth Proportional to 634,633.36, 875,778.81 and 348,150.94

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Solution

The fourth proportional to 634,633.36, 875,778.81 and 348,150.94 is: 480,439.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,633.36 : 875,778.81 = 348,150.94 : x
  2. Step 2: Convert to fraction form
    634,633.36/875,778.81 = 348,150.94/x
  3. Step 3: Cross multiply
    634,633.36x = 875,778.81 × 348,150.94
  4. Step 4: Simplify right side
    634,633.36x = 304,903,215,933.58
  5. Step 5: Solve for x
    x = 304,903,215,933.58/634,633.36
  6. Step 6: Final answer
    x = 480,439.94

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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.