Home / 742,311.26-1,114,026.66-543,145.50

Finding the Fourth Proportional to 742,311.26, 1,114,026.66 and 543,145.50

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Solution

The fourth proportional to 742,311.26, 1,114,026.66 and 543,145.50 is: 815,127.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,311.26 : 1,114,026.66 = 543,145.50 : x
  2. Step 2: Convert to fraction form
    742,311.26/1,114,026.66 = 543,145.50/x
  3. Step 3: Cross multiply
    742,311.26x = 1,114,026.66 × 543,145.50
  4. Step 4: Simplify right side
    742,311.26x = 605,078,567,259.03
  5. Step 5: Solve for x
    x = 605,078,567,259.03/742,311.26
  6. Step 6: Final answer
    x = 815,127.83

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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.