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Finding the Fourth Proportional to 545,710.77, 753,103.58 and 303,993.33

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Solution

The fourth proportional to 545,710.77, 753,103.58 and 303,993.33 is: 419,523.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,710.77 : 753,103.58 = 303,993.33 : x
  2. Step 2: Convert to fraction form
    545,710.77/753,103.58 = 303,993.33/x
  3. Step 3: Cross multiply
    545,710.77x = 753,103.58 × 303,993.33
  4. Step 4: Simplify right side
    545,710.77x = 228,938,463,599.16
  5. Step 5: Solve for x
    x = 228,938,463,599.16/545,710.77
  6. Step 6: Final answer
    x = 419,523.45

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Double scale
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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.