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Finding the Fourth Proportional to 637,553, 879,823.14 and 351,072.40

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Solution

The fourth proportional to 637,553, 879,823.14 and 351,072.40 is: 484,479.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,553 : 879,823.14 = 351,072.40 : x
  2. Step 2: Convert to fraction form
    637,553/879,823.14 = 351,072.40/x
  3. Step 3: Cross multiply
    637,553x = 879,823.14 × 351,072.40
  4. Step 4: Simplify right side
    637,553x = 308,881,621,335.34
  5. Step 5: Solve for x
    x = 308,881,621,335.34/637,553
  6. Step 6: Final answer
    x = 484,479.91

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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.