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Finding the Fourth Proportional to 545,707.52, 753,099.06 and 303,990.02

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Solution

The fourth proportional to 545,707.52, 753,099.06 and 303,990.02 is: 419,518.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,707.52 : 753,099.06 = 303,990.02 : x
  2. Step 2: Convert to fraction form
    545,707.52/753,099.06 = 303,990.02/x
  3. Step 3: Cross multiply
    545,707.52x = 753,099.06 × 303,990.02
  4. Step 4: Simplify right side
    545,707.52x = 228,934,598,311.38
  5. Step 5: Solve for x
    x = 228,934,598,311.38/545,707.52
  6. Step 6: Final answer
    x = 419,518.86

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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.