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Finding the Fourth Proportional to 545,006.42, 752,103.43 and 303,284.86

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Solution

The fourth proportional to 545,006.42, 752,103.43 and 303,284.86 is: 418,530.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,006.42 : 752,103.43 = 303,284.86 : x
  2. Step 2: Convert to fraction form
    545,006.42/752,103.43 = 303,284.86/x
  3. Step 3: Cross multiply
    545,006.42x = 752,103.43 × 303,284.86
  4. Step 4: Simplify right side
    545,006.42x = 228,101,580,834.60
  5. Step 5: Solve for x
    x = 228,101,580,834.60/545,006.42
  6. Step 6: Final answer
    x = 418,530.08

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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.