Home / 808,130.70-1,212,196.05-275,604.30

Finding the Fourth Proportional to 808,130.70, 1,212,196.05 and 275,604.30

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Solution

The fourth proportional to 808,130.70, 1,212,196.05 and 275,604.30 is: 413,406.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,130.70 : 1,212,196.05 = 275,604.30 : x
  2. Step 2: Convert to fraction form
    808,130.70/1,212,196.05 = 275,604.30/x
  3. Step 3: Cross multiply
    808,130.70x = 1,212,196.05 × 275,604.30
  4. Step 4: Simplify right side
    808,130.70x = 334,086,443,823.02
  5. Step 5: Solve for x
    x = 334,086,443,823.02/808,130.70
  6. Step 6: Final answer
    x = 413,406.45

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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.