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Finding the Fourth Proportional to 545,513.53, 752,754.78 and 303,818.59

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Solution

The fourth proportional to 545,513.53, 752,754.78 and 303,818.59 is: 419,239.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,513.53 : 752,754.78 = 303,818.59 : x
  2. Step 2: Convert to fraction form
    545,513.53/752,754.78 = 303,818.59/x
  3. Step 3: Cross multiply
    545,513.53x = 752,754.78 × 303,818.59
  4. Step 4: Simplify right side
    545,513.53x = 228,700,896,714.27
  5. Step 5: Solve for x
    x = 228,700,896,714.27/545,513.53
  6. Step 6: Final answer
    x = 419,239.64

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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.