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Finding the Fourth Proportional to 637,656.43, 879,955.16 and 351,203.17

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Solution

The fourth proportional to 637,656.43, 879,955.16 and 351,203.17 is: 484,654.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,656.43 : 879,955.16 = 351,203.17 : x
  2. Step 2: Convert to fraction form
    637,656.43/879,955.16 = 351,203.17/x
  3. Step 3: Cross multiply
    637,656.43x = 879,955.16 × 351,203.17
  4. Step 4: Simplify right side
    637,656.43x = 309,043,041,649.86
  5. Step 5: Solve for x
    x = 309,043,041,649.86/637,656.43
  6. Step 6: Final answer
    x = 484,654.47

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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.