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Finding the Fourth Proportional to 545,358.05, 752,607.32 and 303,656.95

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Solution

The fourth proportional to 545,358.05, 752,607.32 and 303,656.95 is: 419,053.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,358.05 : 752,607.32 = 303,656.95 : x
  2. Step 2: Convert to fraction form
    545,358.05/752,607.32 = 303,656.95/x
  3. Step 3: Cross multiply
    545,358.05x = 752,607.32 × 303,656.95
  4. Step 4: Simplify right side
    545,358.05x = 228,534,443,338.87
  5. Step 5: Solve for x
    x = 228,534,443,338.87/545,358.05
  6. Step 6: Final answer
    x = 419,053.95

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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.