Home / 939,788.28-1,409,682.42-229,807.89

Finding the Fourth Proportional to 939,788.28, 1,409,682.42 and 229,807.89

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Solution

The fourth proportional to 939,788.28, 1,409,682.42 and 229,807.89 is: 344,711.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,788.28 : 1,409,682.42 = 229,807.89 : x
  2. Step 2: Convert to fraction form
    939,788.28/1,409,682.42 = 229,807.89/x
  3. Step 3: Cross multiply
    939,788.28x = 1,409,682.42 × 229,807.89
  4. Step 4: Simplify right side
    939,788.28x = 323,956,142,510.29
  5. Step 5: Solve for x
    x = 323,956,142,510.29/939,788.28
  6. Step 6: Final answer
    x = 344,711.84

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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.