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Finding the Fourth Proportional to 507,210.36, 699,945.27 and 274,636.20

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Solution

The fourth proportional to 507,210.36, 699,945.27 and 274,636.20 is: 378,995.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,210.36 : 699,945.27 = 274,636.20 : x
  2. Step 2: Convert to fraction form
    507,210.36/699,945.27 = 274,636.20/x
  3. Step 3: Cross multiply
    507,210.36x = 699,945.27 × 274,636.20
  4. Step 4: Simplify right side
    507,210.36x = 192,230,309,160.77
  5. Step 5: Solve for x
    x = 192,230,309,160.77/507,210.36
  6. Step 6: Final answer
    x = 378,995.23

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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.