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Finding the Fourth Proportional to 637,652.55, 879,949.82 and 351,199.29

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Solution

The fourth proportional to 637,652.55, 879,949.82 and 351,199.29 is: 484,649.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,652.55 : 879,949.82 = 351,199.29 : x
  2. Step 2: Convert to fraction form
    637,652.55/879,949.82 = 351,199.29/x
  3. Step 3: Cross multiply
    637,652.55x = 879,949.82 × 351,199.29
  4. Step 4: Simplify right side
    637,652.55x = 309,037,750,263.63
  5. Step 5: Solve for x
    x = 309,037,750,263.63/637,652.55
  6. Step 6: Final answer
    x = 484,649.12

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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.