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Finding the Fourth Proportional to 647,752.94, 893,900.26 and 361,291.50

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Solution

The fourth proportional to 647,752.94, 893,900.26 and 361,291.50 is: 498,582.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,752.94 : 893,900.26 = 361,291.50 : x
  2. Step 2: Convert to fraction form
    647,752.94/893,900.26 = 361,291.50/x
  3. Step 3: Cross multiply
    647,752.94x = 893,900.26 × 361,291.50
  4. Step 4: Simplify right side
    647,752.94x = 322,958,565,785.79
  5. Step 5: Solve for x
    x = 322,958,565,785.79/647,752.94
  6. Step 6: Final answer
    x = 498,582.94

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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.