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Finding the Fourth Proportional to 637,290.40, 879,460.50 and 350,809

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Solution

The fourth proportional to 637,290.40, 879,460.50 and 350,809 is: 484,116.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,290.40 : 879,460.50 = 350,809 : x
  2. Step 2: Convert to fraction form
    637,290.40/879,460.50 = 350,809/x
  3. Step 3: Cross multiply
    637,290.40x = 879,460.50 × 350,809
  4. Step 4: Simplify right side
    637,290.40x = 308,522,658,544.50
  5. Step 5: Solve for x
    x = 308,522,658,544.50/637,290.40
  6. Step 6: Final answer
    x = 484,116.28

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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.