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Finding the Fourth Proportional to 545,579.82, 752,900.40 and 303,908.76

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Solution

The fourth proportional to 545,579.82, 752,900.40 and 303,908.76 is: 419,394.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,579.82 : 752,900.40 = 303,908.76 : x
  2. Step 2: Convert to fraction form
    545,579.82/752,900.40 = 303,908.76/x
  3. Step 3: Cross multiply
    545,579.82x = 752,900.40 × 303,908.76
  4. Step 4: Simplify right side
    545,579.82x = 228,813,026,967.50
  5. Step 5: Solve for x
    x = 228,813,026,967.50/545,579.82
  6. Step 6: Final answer
    x = 419,394.23

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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.