Home / 869,231.40-1,303,847.10-308,322.60

Finding the Fourth Proportional to 869,231.40, 1,303,847.10 and 308,322.60

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Solution

The fourth proportional to 869,231.40, 1,303,847.10 and 308,322.60 is: 462,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,231.40 : 1,303,847.10 = 308,322.60 : x
  2. Step 2: Convert to fraction form
    869,231.40/1,303,847.10 = 308,322.60/x
  3. Step 3: Cross multiply
    869,231.40x = 1,303,847.10 × 308,322.60
  4. Step 4: Simplify right side
    869,231.40x = 402,005,527,874.46
  5. Step 5: Solve for x
    x = 402,005,527,874.46/869,231.40
  6. Step 6: Final answer
    x = 462,483.90

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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.