Home / 869,084.80-1,303,627.20-308,046.40

Finding the Fourth Proportional to 869,084.80, 1,303,627.20 and 308,046.40

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Solution

The fourth proportional to 869,084.80, 1,303,627.20 and 308,046.40 is: 462,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,084.80 : 1,303,627.20 = 308,046.40 : x
  2. Step 2: Convert to fraction form
    869,084.80/1,303,627.20 = 308,046.40/x
  3. Step 3: Cross multiply
    869,084.80x = 1,303,627.20 × 308,046.40
  4. Step 4: Simplify right side
    869,084.80x = 401,577,665,902.08
  5. Step 5: Solve for x
    x = 401,577,665,902.08/869,084.80
  6. Step 6: Final answer
    x = 462,069.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.