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Finding the Fourth Proportional to 550,783.60, 759,800.24 and 359,908.72

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Solution

The fourth proportional to 550,783.60, 759,800.24 and 359,908.72 is: 496,490.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,783.60 : 759,800.24 = 359,908.72 : x
  2. Step 2: Convert to fraction form
    550,783.60/759,800.24 = 359,908.72/x
  3. Step 3: Cross multiply
    550,783.60x = 759,800.24 × 359,908.72
  4. Step 4: Simplify right side
    550,783.60x = 273,458,731,834.09
  5. Step 5: Solve for x
    x = 273,458,731,834.09/550,783.60
  6. Step 6: Final answer
    x = 496,490.33

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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.