Home / 742,308.73-1,114,022.87-543,142.96

Finding the Fourth Proportional to 742,308.73, 1,114,022.87 and 543,142.96

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Solution

The fourth proportional to 742,308.73, 1,114,022.87 and 543,142.96 is: 815,124.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,308.73 : 1,114,022.87 = 543,142.96 : x
  2. Step 2: Convert to fraction form
    742,308.73/1,114,022.87 = 543,142.96/x
  3. Step 3: Cross multiply
    742,308.73x = 1,114,022.87 × 543,142.96
  4. Step 4: Simplify right side
    742,308.73x = 605,073,679,119.50
  5. Step 5: Solve for x
    x = 605,073,679,119.50/742,308.73
  6. Step 6: Final answer
    x = 815,124.02

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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.