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Finding the Fourth Proportional to 478,461.33, 660,278.27 and 263,600.88

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Solution

The fourth proportional to 478,461.33, 660,278.27 and 263,600.88 is: 363,770.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,461.33 : 660,278.27 = 263,600.88 : x
  2. Step 2: Convert to fraction form
    478,461.33/660,278.27 = 263,600.88/x
  3. Step 3: Cross multiply
    478,461.33x = 660,278.27 × 263,600.88
  4. Step 4: Simplify right side
    478,461.33x = 174,049,931,199.84
  5. Step 5: Solve for x
    x = 174,049,931,199.84/478,461.33
  6. Step 6: Final answer
    x = 363,770.11

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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.