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Finding the Fourth Proportional to 545,285.21, 752,478.92 and 303,567.81

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Solution

The fourth proportional to 545,285.21, 752,478.92 and 303,567.81 is: 418,915.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,285.21 : 752,478.92 = 303,567.81 : x
  2. Step 2: Convert to fraction form
    545,285.21/752,478.92 = 303,567.81/x
  3. Step 3: Cross multiply
    545,285.21x = 752,478.92 × 303,567.81
  4. Step 4: Simplify right side
    545,285.21x = 228,428,377,815.57
  5. Step 5: Solve for x
    x = 228,428,377,815.57/545,285.21
  6. Step 6: Final answer
    x = 418,915.41

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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.