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Finding the Fourth Proportional to 634,289.40, 875,318.67 and 347,814.27

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Solution

The fourth proportional to 634,289.40, 875,318.67 and 347,814.27 is: 479,983.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,289.40 : 875,318.67 = 347,814.27 : x
  2. Step 2: Convert to fraction form
    634,289.40/875,318.67 = 347,814.27/x
  3. Step 3: Cross multiply
    634,289.40x = 875,318.67 × 347,814.27
  4. Step 4: Simplify right side
    634,289.40x = 304,448,324,223.42
  5. Step 5: Solve for x
    x = 304,448,324,223.42/634,289.40
  6. Step 6: Final answer
    x = 479,983.31

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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.