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Finding the Fourth Proportional to 637,686.36, 880,046.98 and 351,206.37

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Solution

The fourth proportional to 637,686.36, 880,046.98 and 351,206.37 is: 484,686.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,686.36 : 880,046.98 = 351,206.37 : x
  2. Step 2: Convert to fraction form
    637,686.36/880,046.98 = 351,206.37/x
  3. Step 3: Cross multiply
    637,686.36x = 880,046.98 × 351,206.37
  4. Step 4: Simplify right side
    637,686.36x = 309,078,104,397.25
  5. Step 5: Solve for x
    x = 309,078,104,397.25/637,686.36
  6. Step 6: Final answer
    x = 484,686.71

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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.