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Finding the Fourth Proportional to 545,370.57, 752,570.28 and 303,606.43

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Solution

The fourth proportional to 545,370.57, 752,570.28 and 303,606.43 is: 418,953.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,370.57 : 752,570.28 = 303,606.43 : x
  2. Step 2: Convert to fraction form
    545,370.57/752,570.28 = 303,606.43/x
  3. Step 3: Cross multiply
    545,370.57x = 752,570.28 × 303,606.43
  4. Step 4: Simplify right side
    545,370.57x = 228,485,176,107.71
  5. Step 5: Solve for x
    x = 228,485,176,107.71/545,370.57
  6. Step 6: Final answer
    x = 418,953.99

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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.