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Finding the Fourth Proportional to 637,690.93, 879,973.10 and 351,211.01

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Solution

The fourth proportional to 637,690.93, 879,973.10 and 351,211.01 is: 484,648.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,690.93 : 879,973.10 = 351,211.01 : x
  2. Step 2: Convert to fraction form
    637,690.93/879,973.10 = 351,211.01/x
  3. Step 3: Cross multiply
    637,690.93x = 879,973.10 × 351,211.01
  4. Step 4: Simplify right side
    637,690.93x = 309,056,236,384.95
  5. Step 5: Solve for x
    x = 309,056,236,384.95/637,690.93
  6. Step 6: Final answer
    x = 484,648.95

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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.