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Finding the Fourth Proportional to 637,400.29, 879,609.90 and 350,920.57

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Solution

The fourth proportional to 637,400.29, 879,609.90 and 350,920.57 is: 484,269.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,400.29 : 879,609.90 = 350,920.57 : x
  2. Step 2: Convert to fraction form
    637,400.29/879,609.90 = 350,920.57/x
  3. Step 3: Cross multiply
    637,400.29x = 879,609.90 × 350,920.57
  4. Step 4: Simplify right side
    637,400.29x = 308,673,207,485.64
  5. Step 5: Solve for x
    x = 308,673,207,485.64/637,400.29
  6. Step 6: Final answer
    x = 484,269.01

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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.