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Finding the Fourth Proportional to 637,653.43, 879,951.02 and 351,200.17

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Solution

The fourth proportional to 637,653.43, 879,951.02 and 351,200.17 is: 484,650.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,653.43 : 879,951.02 = 351,200.17 : x
  2. Step 2: Convert to fraction form
    637,653.43/879,951.02 = 351,200.17/x
  3. Step 3: Cross multiply
    637,653.43x = 879,951.02 × 351,200.17
  4. Step 4: Simplify right side
    637,653.43x = 309,038,943,415.92
  5. Step 5: Solve for x
    x = 309,038,943,415.92/637,653.43
  6. Step 6: Final answer
    x = 484,650.33

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1.5x scale

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.