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Finding the Fourth Proportional to 545,118.96, 752,256.62 and 303,401.63

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Solution

The fourth proportional to 545,118.96, 752,256.62 and 303,401.63 is: 418,690.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,118.96 : 752,256.62 = 303,401.63 : x
  2. Step 2: Convert to fraction form
    545,118.96/752,256.62 = 303,401.63/x
  3. Step 3: Cross multiply
    545,118.96x = 752,256.62 × 303,401.63
  4. Step 4: Simplify right side
    545,118.96x = 228,235,886,187.68
  5. Step 5: Solve for x
    x = 228,235,886,187.68/545,118.96
  6. Step 6: Final answer
    x = 418,690.05

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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.