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Finding the Fourth Proportional to 637,657.80, 879,957.04 and 351,204.56

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Solution

The fourth proportional to 637,657.80, 879,957.04 and 351,204.56 is: 484,656.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,657.80 : 879,957.04 = 351,204.56 : x
  2. Step 2: Convert to fraction form
    637,657.80/879,957.04 = 351,204.56/x
  3. Step 3: Cross multiply
    637,657.80x = 879,957.04 × 351,204.56
  4. Step 4: Simplify right side
    637,657.80x = 309,044,925,052.10
  5. Step 5: Solve for x
    x = 309,044,925,052.10/637,657.80
  6. Step 6: Final answer
    x = 484,656.39

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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.