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Finding the Fourth Proportional to 545,321.23, 752,573.16 and 303,598.53

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Solution

The fourth proportional to 545,321.23, 752,573.16 and 303,598.53 is: 418,982.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,321.23 : 752,573.16 = 303,598.53 : x
  2. Step 2: Convert to fraction form
    545,321.23/752,573.16 = 303,598.53/x
  3. Step 3: Cross multiply
    545,321.23x = 752,573.16 × 303,598.53
  4. Step 4: Simplify right side
    545,321.23x = 228,480,105,093.46
  5. Step 5: Solve for x
    x = 228,480,105,093.46/545,321.23
  6. Step 6: Final answer
    x = 418,982.60

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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.