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Finding the Fourth Proportional to 637,396.61, 879,590.25 and 350,918.84

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Solution

The fourth proportional to 637,396.61, 879,590.25 and 350,918.84 is: 484,258.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,396.61 : 879,590.25 = 350,918.84 : x
  2. Step 2: Convert to fraction form
    637,396.61/879,590.25 = 350,918.84/x
  3. Step 3: Cross multiply
    637,396.61x = 879,590.25 × 350,918.84
  4. Step 4: Simplify right side
    637,396.61x = 308,664,790,205.31
  5. Step 5: Solve for x
    x = 308,664,790,205.31/637,396.61
  6. Step 6: Final answer
    x = 484,258.60

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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.