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Finding the Fourth Proportional to 545,037.48, 752,146.02 and 303,315.80

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Solution

The fourth proportional to 545,037.48, 752,146.02 and 303,315.80 is: 418,572.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,037.48 : 752,146.02 = 303,315.80 : x
  2. Step 2: Convert to fraction form
    545,037.48/752,146.02 = 303,315.80/x
  3. Step 3: Cross multiply
    545,037.48x = 752,146.02 × 303,315.80
  4. Step 4: Simplify right side
    545,037.48x = 228,137,768,012.39
  5. Step 5: Solve for x
    x = 228,137,768,012.39/545,037.48
  6. Step 6: Final answer
    x = 418,572.62

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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.