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Finding the Fourth Proportional to 637,735.26, 880,041.45 and 396,012.65

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Solution

The fourth proportional to 637,735.26, 880,041.45 and 396,012.65 is: 546,476.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,735.26 : 880,041.45 = 396,012.65 : x
  2. Step 2: Convert to fraction form
    637,735.26/880,041.45 = 396,012.65/x
  3. Step 3: Cross multiply
    637,735.26x = 880,041.45 × 396,012.65
  4. Step 4: Simplify right side
    637,735.26x = 348,507,546,724.34
  5. Step 5: Solve for x
    x = 348,507,546,724.34/637,735.26
  6. Step 6: Final answer
    x = 546,476.84

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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.