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Finding the Fourth Proportional to 545,347.86, 818,188.85 and 279,295.26

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Solution

The fourth proportional to 545,347.86, 818,188.85 and 279,295.26 is: 419,028.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,347.86 : 818,188.85 = 279,295.26 : x
  2. Step 2: Convert to fraction form
    545,347.86/818,188.85 = 279,295.26/x
  3. Step 3: Cross multiply
    545,347.86x = 818,188.85 × 279,295.26
  4. Step 4: Simplify right side
    545,347.86x = 228,516,267,589.85
  5. Step 5: Solve for x
    x = 228,516,267,589.85/545,347.86
  6. Step 6: Final answer
    x = 419,028.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.