Home / 674,612.20-1,011,918.30-253,982.44

Finding the Fourth Proportional to 674,612.20, 1,011,918.30 and 253,982.44

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Solution

The fourth proportional to 674,612.20, 1,011,918.30 and 253,982.44 is: 380,973.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,612.20 : 1,011,918.30 = 253,982.44 : x
  2. Step 2: Convert to fraction form
    674,612.20/1,011,918.30 = 253,982.44/x
  3. Step 3: Cross multiply
    674,612.20x = 1,011,918.30 × 253,982.44
  4. Step 4: Simplify right side
    674,612.20x = 257,009,478,914.65
  5. Step 5: Solve for x
    x = 257,009,478,914.65/674,612.20
  6. Step 6: Final answer
    x = 380,973.66

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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.