Home / 742,718.70-1,114,078.05-210,232.80

Finding the Fourth Proportional to 742,718.70, 1,114,078.05 and 210,232.80

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Solution

The fourth proportional to 742,718.70, 1,114,078.05 and 210,232.80 is: 315,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,718.70 : 1,114,078.05 = 210,232.80 : x
  2. Step 2: Convert to fraction form
    742,718.70/1,114,078.05 = 210,232.80/x
  3. Step 3: Cross multiply
    742,718.70x = 1,114,078.05 × 210,232.80
  4. Step 4: Simplify right side
    742,718.70x = 234,215,747,870.04
  5. Step 5: Solve for x
    x = 234,215,747,870.04/742,718.70
  6. Step 6: Final answer
    x = 315,349.20

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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.