Home / 890,765.40-1,336,148.10-330,018.60

Finding the Fourth Proportional to 890,765.40, 1,336,148.10 and 330,018.60

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Solution

The fourth proportional to 890,765.40, 1,336,148.10 and 330,018.60 is: 495,027.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,765.40 : 1,336,148.10 = 330,018.60 : x
  2. Step 2: Convert to fraction form
    890,765.40/1,336,148.10 = 330,018.60/x
  3. Step 3: Cross multiply
    890,765.40x = 1,336,148.10 × 330,018.60
  4. Step 4: Simplify right side
    890,765.40x = 440,953,725,354.66
  5. Step 5: Solve for x
    x = 440,953,725,354.66/890,765.40
  6. Step 6: Final answer
    x = 495,027.90

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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.