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Finding the Fourth Proportional to 634,833.28, 876,124.34 and 348,408.73

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Solution

The fourth proportional to 634,833.28, 876,124.34 and 348,408.73 is: 480,833.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,833.28 : 876,124.34 = 348,408.73 : x
  2. Step 2: Convert to fraction form
    634,833.28/876,124.34 = 348,408.73/x
  3. Step 3: Cross multiply
    634,833.28x = 876,124.34 × 348,408.73
  4. Step 4: Simplify right side
    634,833.28x = 305,249,368,621.49
  5. Step 5: Solve for x
    x = 305,249,368,621.49/634,833.28
  6. Step 6: Final answer
    x = 480,833.91

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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.