Home / 869,442.40-1,304,163.60-308,533.60

Finding the Fourth Proportional to 869,442.40, 1,304,163.60 and 308,533.60

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Solution

The fourth proportional to 869,442.40, 1,304,163.60 and 308,533.60 is: 462,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,442.40 : 1,304,163.60 = 308,533.60 : x
  2. Step 2: Convert to fraction form
    869,442.40/1,304,163.60 = 308,533.60/x
  3. Step 3: Cross multiply
    869,442.40x = 1,304,163.60 × 308,533.60
  4. Step 4: Simplify right side
    869,442.40x = 402,378,290,496.96
  5. Step 5: Solve for x
    x = 402,378,290,496.96/869,442.40
  6. Step 6: Final answer
    x = 462,800.40

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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.