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Finding the Fourth Proportional to 478,571.34, 660,457.86 and 263,711.34

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Solution

The fourth proportional to 478,571.34, 660,457.86 and 263,711.34 is: 363,937.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,571.34 : 660,457.86 = 263,711.34 : x
  2. Step 2: Convert to fraction form
    478,571.34/660,457.86 = 263,711.34/x
  3. Step 3: Cross multiply
    478,571.34x = 660,457.86 × 263,711.34
  4. Step 4: Simplify right side
    478,571.34x = 174,170,227,274.13
  5. Step 5: Solve for x
    x = 174,170,227,274.13/478,571.34
  6. Step 6: Final answer
    x = 363,937.86

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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.