Home / 428,426.05-591,228.01-237,451.77

Finding the Fourth Proportional to 428,426.05, 591,228.01 and 237,451.77

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Solution

The fourth proportional to 428,426.05, 591,228.01 and 237,451.77 is: 327,683.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,426.05 : 591,228.01 = 237,451.77 : x
  2. Step 2: Convert to fraction form
    428,426.05/591,228.01 = 237,451.77/x
  3. Step 3: Cross multiply
    428,426.05x = 591,228.01 × 237,451.77
  4. Step 4: Simplify right side
    428,426.05x = 140,388,136,260.82
  5. Step 5: Solve for x
    x = 140,388,136,260.82/428,426.05
  6. Step 6: Final answer
    x = 327,683.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.