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Finding the Fourth Proportional to 637,990.28, 880,446.48 and 366,107.96

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Solution

The fourth proportional to 637,990.28, 880,446.48 and 366,107.96 is: 505,240.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,990.28 : 880,446.48 = 366,107.96 : x
  2. Step 2: Convert to fraction form
    637,990.28/880,446.48 = 366,107.96/x
  3. Step 3: Cross multiply
    637,990.28x = 880,446.48 × 366,107.96
  4. Step 4: Simplify right side
    637,990.28x = 322,338,464,681.98
  5. Step 5: Solve for x
    x = 322,338,464,681.98/637,990.28
  6. Step 6: Final answer
    x = 505,240.40

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Double scale
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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.