Home / 810,048.60-1,215,072.90-360,984.60

Finding the Fourth Proportional to 810,048.60, 1,215,072.90 and 360,984.60

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Solution

The fourth proportional to 810,048.60, 1,215,072.90 and 360,984.60 is: 541,476.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,048.60 : 1,215,072.90 = 360,984.60 : x
  2. Step 2: Convert to fraction form
    810,048.60/1,215,072.90 = 360,984.60/x
  3. Step 3: Cross multiply
    810,048.60x = 1,215,072.90 × 360,984.60
  4. Step 4: Simplify right side
    810,048.60x = 438,622,604,777.34
  5. Step 5: Solve for x
    x = 438,622,604,777.34/810,048.60
  6. Step 6: Final answer
    x = 541,476.90

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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.