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Finding the Fourth Proportional to 478,553.96, 660,433.47 and 263,693.77

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Solution

The fourth proportional to 478,553.96, 660,433.47 and 263,693.77 is: 363,913.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,553.96 : 660,433.47 = 263,693.77 : x
  2. Step 2: Convert to fraction form
    478,553.96/660,433.47 = 263,693.77/x
  3. Step 3: Cross multiply
    478,553.96x = 660,433.47 × 263,693.77
  4. Step 4: Simplify right side
    478,553.96x = 174,152,188,898.55
  5. Step 5: Solve for x
    x = 174,152,188,898.55/478,553.96
  6. Step 6: Final answer
    x = 363,913.38

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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.