Home / 742,951.80-1,114,427.70-477,231.30

Finding the Fourth Proportional to 742,951.80, 1,114,427.70 and 477,231.30

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Solution

The fourth proportional to 742,951.80, 1,114,427.70 and 477,231.30 is: 715,846.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,951.80 : 1,114,427.70 = 477,231.30 : x
  2. Step 2: Convert to fraction form
    742,951.80/1,114,427.70 = 477,231.30/x
  3. Step 3: Cross multiply
    742,951.80x = 1,114,427.70 × 477,231.30
  4. Step 4: Simplify right side
    742,951.80x = 531,839,780,027.01
  5. Step 5: Solve for x
    x = 531,839,780,027.01/742,951.80
  6. Step 6: Final answer
    x = 715,846.95

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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.