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Finding the Fourth Proportional to 637,551, 879,820.38 and 351,070.40

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Solution

The fourth proportional to 637,551, 879,820.38 and 351,070.40 is: 484,477.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,551 : 879,820.38 = 351,070.40 : x
  2. Step 2: Convert to fraction form
    637,551/879,820.38 = 351,070.40/x
  3. Step 3: Cross multiply
    637,551x = 879,820.38 × 351,070.40
  4. Step 4: Simplify right side
    637,551x = 308,878,894,934.30
  5. Step 5: Solve for x
    x = 308,878,894,934.30/637,551
  6. Step 6: Final answer
    x = 484,477.16

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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.