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Finding the Fourth Proportional to 637,274.58, 879,361.38 and 379,159.08

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Solution

The fourth proportional to 637,274.58, 879,361.38 and 379,159.08 is: 523,193.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,274.58 : 879,361.38 = 379,159.08 : x
  2. Step 2: Convert to fraction form
    637,274.58/879,361.38 = 379,159.08/x
  3. Step 3: Cross multiply
    637,274.58x = 879,361.38 × 379,159.08
  4. Step 4: Simplify right side
    637,274.58x = 333,417,851,828.33
  5. Step 5: Solve for x
    x = 333,417,851,828.33/637,274.58
  6. Step 6: Final answer
    x = 523,193.40

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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.