Home / 693,478.40-1,040,217.60-294,051.20

Finding the Fourth Proportional to 693,478.40, 1,040,217.60 and 294,051.20

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Solution

The fourth proportional to 693,478.40, 1,040,217.60 and 294,051.20 is: 441,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,478.40 : 1,040,217.60 = 294,051.20 : x
  2. Step 2: Convert to fraction form
    693,478.40/1,040,217.60 = 294,051.20/x
  3. Step 3: Cross multiply
    693,478.40x = 1,040,217.60 × 294,051.20
  4. Step 4: Simplify right side
    693,478.40x = 305,877,233,541.12
  5. Step 5: Solve for x
    x = 305,877,233,541.12/693,478.40
  6. Step 6: Final answer
    x = 441,076.80

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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.