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Finding the Fourth Proportional to 637,653.77, 879,951.57 and 351,200.51

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Solution

The fourth proportional to 637,653.77, 879,951.57 and 351,200.51 is: 484,650.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,653.77 : 879,951.57 = 351,200.51 : x
  2. Step 2: Convert to fraction form
    637,653.77/879,951.57 = 351,200.51/x
  3. Step 3: Cross multiply
    637,653.77x = 879,951.57 × 351,200.51
  4. Step 4: Simplify right side
    637,653.77x = 309,039,440,159.30
  5. Step 5: Solve for x
    x = 309,039,440,159.30/637,653.77
  6. Step 6: Final answer
    x = 484,650.85

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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.