Home / 939,466.14-1,409,195.40-340,287.06

Finding the Fourth Proportional to 939,466.14, 1,409,195.40 and 340,287.06

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Solution

The fourth proportional to 939,466.14, 1,409,195.40 and 340,287.06 is: 510,429.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,466.14 : 1,409,195.40 = 340,287.06 : x
  2. Step 2: Convert to fraction form
    939,466.14/1,409,195.40 = 340,287.06/x
  3. Step 3: Cross multiply
    939,466.14x = 1,409,195.40 × 340,287.06
  4. Step 4: Simplify right side
    939,466.14x = 479,530,959,631.52
  5. Step 5: Solve for x
    x = 479,530,959,631.52/939,466.14
  6. Step 6: Final answer
    x = 510,429.21

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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.