Home / 742,905.70-1,114,358.55-181,940.20

Finding the Fourth Proportional to 742,905.70, 1,114,358.55 and 181,940.20

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Solution

The fourth proportional to 742,905.70, 1,114,358.55 and 181,940.20 is: 272,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,905.70 : 1,114,358.55 = 181,940.20 : x
  2. Step 2: Convert to fraction form
    742,905.70/1,114,358.55 = 181,940.20/x
  3. Step 3: Cross multiply
    742,905.70x = 1,114,358.55 × 181,940.20
  4. Step 4: Simplify right side
    742,905.70x = 202,746,617,458.71
  5. Step 5: Solve for x
    x = 202,746,617,458.71/742,905.70
  6. Step 6: Final answer
    x = 272,910.30

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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.