Home / 742,856.40-1,114,576.20-293,500.80

Finding the Fourth Proportional to 742,856.40, 1,114,576.20 and 293,500.80

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Solution

The fourth proportional to 742,856.40, 1,114,576.20 and 293,500.80 is: 440,366.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,856.40 : 1,114,576.20 = 293,500.80 : x
  2. Step 2: Convert to fraction form
    742,856.40/1,114,576.20 = 293,500.80/x
  3. Step 3: Cross multiply
    742,856.40x = 1,114,576.20 × 293,500.80
  4. Step 4: Simplify right side
    742,856.40x = 327,129,006,360.96
  5. Step 5: Solve for x
    x = 327,129,006,360.96/742,856.40
  6. Step 6: Final answer
    x = 440,366.41

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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.