Home / 869,336.20-1,304,234.70-308,312.20

Finding the Fourth Proportional to 869,336.20, 1,304,234.70 and 308,312.20

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Solution

The fourth proportional to 869,336.20, 1,304,234.70 and 308,312.20 is: 462,550.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,336.20 : 1,304,234.70 = 308,312.20 : x
  2. Step 2: Convert to fraction form
    869,336.20/1,304,234.70 = 308,312.20/x
  3. Step 3: Cross multiply
    869,336.20x = 1,304,234.70 × 308,312.20
  4. Step 4: Simplify right side
    869,336.20x = 402,111,469,673.34
  5. Step 5: Solve for x
    x = 402,111,469,673.34/869,336.20
  6. Step 6: Final answer
    x = 462,550.01

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Half scale
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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.