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Finding the Fourth Proportional to 478,805.99, 660,754.26 and 263,941.34

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Solution

The fourth proportional to 478,805.99, 660,754.26 and 263,941.34 is: 364,240.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,805.99 : 660,754.26 = 263,941.34 : x
  2. Step 2: Convert to fraction form
    478,805.99/660,754.26 = 263,941.34/x
  3. Step 3: Cross multiply
    478,805.99x = 660,754.26 × 263,941.34
  4. Step 4: Simplify right side
    478,805.99x = 174,400,361,491.34
  5. Step 5: Solve for x
    x = 174,400,361,491.34/478,805.99
  6. Step 6: Final answer
    x = 364,240.15

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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.