Home / 742,308.23-1,114,022.12-543,142.46

Finding the Fourth Proportional to 742,308.23, 1,114,022.12 and 543,142.46

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Solution

The fourth proportional to 742,308.23, 1,114,022.12 and 543,142.46 is: 815,123.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,308.23 : 1,114,022.12 = 543,142.46 : x
  2. Step 2: Convert to fraction form
    742,308.23/1,114,022.12 = 543,142.46/x
  3. Step 3: Cross multiply
    742,308.23x = 1,114,022.12 × 543,142.46
  4. Step 4: Simplify right side
    742,308.23x = 605,072,706,465.39
  5. Step 5: Solve for x
    x = 605,072,706,465.39/742,308.23
  6. Step 6: Final answer
    x = 815,123.27

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Double scale
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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.