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Finding the Fourth Proportional to 634,323.71, 875,378.72 and 347,826.71

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Solution

The fourth proportional to 634,323.71, 875,378.72 and 347,826.71 is: 480,007.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,323.71 : 875,378.72 = 347,826.71 : x
  2. Step 2: Convert to fraction form
    634,323.71/875,378.72 = 347,826.71/x
  3. Step 3: Cross multiply
    634,323.71x = 875,378.72 × 347,826.71
  4. Step 4: Simplify right side
    634,323.71x = 304,480,096,674.28
  5. Step 5: Solve for x
    x = 304,480,096,674.28/634,323.71
  6. Step 6: Final answer
    x = 480,007.44

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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.