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Finding the Fourth Proportional to 505,953.60, 759,443.94 and 253,415.04

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Solution

The fourth proportional to 505,953.60, 759,443.94 and 253,415.04 is: 380,379.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,953.60 : 759,443.94 = 253,415.04 : x
  2. Step 2: Convert to fraction form
    505,953.60/759,443.94 = 253,415.04/x
  3. Step 3: Cross multiply
    505,953.60x = 759,443.94 × 253,415.04
  4. Step 4: Simplify right side
    505,953.60x = 192,454,516,432.86
  5. Step 5: Solve for x
    x = 192,454,516,432.86/505,953.60
  6. Step 6: Final answer
    x = 380,379.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.