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Finding the Fourth Proportional to 553,772.19, 764,205.63 and 299,123.37

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Solution

The fourth proportional to 553,772.19, 764,205.63 and 299,123.37 is: 412,790.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,772.19 : 764,205.63 = 299,123.37 : x
  2. Step 2: Convert to fraction form
    553,772.19/764,205.63 = 299,123.37/x
  3. Step 3: Cross multiply
    553,772.19x = 764,205.63 × 299,123.37
  4. Step 4: Simplify right side
    553,772.19x = 228,591,763,418.57
  5. Step 5: Solve for x
    x = 228,591,763,418.57/553,772.19
  6. Step 6: Final answer
    x = 412,790.25

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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.