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Finding the Fourth Proportional to 618,858.27, 926,346.24 and 425,605.23

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Solution

The fourth proportional to 618,858.27, 926,346.24 and 425,605.23 is: 637,072.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,858.27 : 926,346.24 = 425,605.23 : x
  2. Step 2: Convert to fraction form
    618,858.27/926,346.24 = 425,605.23/x
  3. Step 3: Cross multiply
    618,858.27x = 926,346.24 × 425,605.23
  4. Step 4: Simplify right side
    618,858.27x = 394,257,804,534.84
  5. Step 5: Solve for x
    x = 394,257,804,534.84/618,858.27
  6. Step 6: Final answer
    x = 637,072.85

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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.