Home / 926,902.60-1,390,353.90-394,246.60

Finding the Fourth Proportional to 926,902.60, 1,390,353.90 and 394,246.60

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Solution

The fourth proportional to 926,902.60, 1,390,353.90 and 394,246.60 is: 591,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,902.60 : 1,390,353.90 = 394,246.60 : x
  2. Step 2: Convert to fraction form
    926,902.60/1,390,353.90 = 394,246.60/x
  3. Step 3: Cross multiply
    926,902.60x = 1,390,353.90 × 394,246.60
  4. Step 4: Simplify right side
    926,902.60x = 548,142,297,871.74
  5. Step 5: Solve for x
    x = 548,142,297,871.74/926,902.60
  6. Step 6: Final answer
    x = 591,369.90

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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.