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Finding the Fourth Proportional to 500,650.88, 690,927.57 and 285,858.32

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Solution

The fourth proportional to 500,650.88, 690,927.57 and 285,858.32 is: 394,501.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,650.88 : 690,927.57 = 285,858.32 : x
  2. Step 2: Convert to fraction form
    500,650.88/690,927.57 = 285,858.32/x
  3. Step 3: Cross multiply
    500,650.88x = 690,927.57 × 285,858.32
  4. Step 4: Simplify right side
    500,650.88x = 197,507,390,947.25
  5. Step 5: Solve for x
    x = 197,507,390,947.25/500,650.88
  6. Step 6: Final answer
    x = 394,501.24

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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.