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Finding the Fourth Proportional to 618,600.90, 927,673.74 and 213,690.06

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Solution

The fourth proportional to 618,600.90, 927,673.74 and 213,690.06 is: 320,456.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,600.90 : 927,673.74 = 213,690.06 : x
  2. Step 2: Convert to fraction form
    618,600.90/927,673.74 = 213,690.06/x
  3. Step 3: Cross multiply
    618,600.90x = 927,673.74 × 213,690.06
  4. Step 4: Simplify right side
    618,600.90x = 198,234,657,161.02
  5. Step 5: Solve for x
    x = 198,234,657,161.02/618,600.90
  6. Step 6: Final answer
    x = 320,456.46

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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.