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Finding the Fourth Proportional to 545,178.99, 752,330.25 and 303,455.35

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Solution

The fourth proportional to 545,178.99, 752,330.25 and 303,455.35 is: 418,759.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,178.99 : 752,330.25 = 303,455.35 : x
  2. Step 2: Convert to fraction form
    545,178.99/752,330.25 = 303,455.35/x
  3. Step 3: Cross multiply
    545,178.99x = 752,330.25 × 303,455.35
  4. Step 4: Simplify right side
    545,178.99x = 228,298,639,329.34
  5. Step 5: Solve for x
    x = 228,298,639,329.34/545,178.99
  6. Step 6: Final answer
    x = 418,759.06

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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.