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Finding the Fourth Proportional to 647,525.70, 893,543.49 and 361,028.70

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Solution

The fourth proportional to 647,525.70, 893,543.49 and 361,028.70 is: 498,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,525.70 : 893,543.49 = 361,028.70 : x
  2. Step 2: Convert to fraction form
    647,525.70/893,543.49 = 361,028.70/x
  3. Step 3: Cross multiply
    647,525.70x = 893,543.49 × 361,028.70
  4. Step 4: Simplify right side
    647,525.70x = 322,594,844,588.16
  5. Step 5: Solve for x
    x = 322,594,844,588.16/647,525.70
  6. Step 6: Final answer
    x = 498,196.20

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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.