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Finding the Fourth Proportional to 487,457.08, 672,662.86 and 269,652.76

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Solution

The fourth proportional to 487,457.08, 672,662.86 and 269,652.76 is: 372,105.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,457.08 : 672,662.86 = 269,652.76 : x
  2. Step 2: Convert to fraction form
    487,457.08/672,662.86 = 269,652.76/x
  3. Step 3: Cross multiply
    487,457.08x = 672,662.86 × 269,652.76
  4. Step 4: Simplify right side
    487,457.08x = 181,385,396,748.49
  5. Step 5: Solve for x
    x = 181,385,396,748.49/487,457.08
  6. Step 6: Final answer
    x = 372,105.37

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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.