Home / 618,023.06-926,814.27-280,781.18

Finding the Fourth Proportional to 618,023.06, 926,814.27 and 280,781.18

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Solution

The fourth proportional to 618,023.06, 926,814.27 and 280,781.18 is: 421,071.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,023.06 : 926,814.27 = 280,781.18 : x
  2. Step 2: Convert to fraction form
    618,023.06/926,814.27 = 280,781.18/x
  3. Step 3: Cross multiply
    618,023.06x = 926,814.27 × 280,781.18
  4. Step 4: Simplify right side
    618,023.06x = 260,232,004,371.44
  5. Step 5: Solve for x
    x = 260,232,004,371.44/618,023.06
  6. Step 6: Final answer
    x = 421,071.67

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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.