Home / 742,309.27-1,114,023.67-543,143.50

Finding the Fourth Proportional to 742,309.27, 1,114,023.67 and 543,143.50

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Solution

The fourth proportional to 742,309.27, 1,114,023.67 and 543,143.50 is: 815,124.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,309.27 : 1,114,023.67 = 543,143.50 : x
  2. Step 2: Convert to fraction form
    742,309.27/1,114,023.67 = 543,143.50/x
  3. Step 3: Cross multiply
    742,309.27x = 1,114,023.67 × 543,143.50
  4. Step 4: Simplify right side
    742,309.27x = 605,074,711,063.73
  5. Step 5: Solve for x
    x = 605,074,711,063.73/742,309.27
  6. Step 6: Final answer
    x = 815,124.82

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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.