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Finding the Fourth Proportional to 551,230.68, 760,742.46 and 309,529.32

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Solution

The fourth proportional to 551,230.68, 760,742.46 and 309,529.32 is: 427,175.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,230.68 : 760,742.46 = 309,529.32 : x
  2. Step 2: Convert to fraction form
    551,230.68/760,742.46 = 309,529.32/x
  3. Step 3: Cross multiply
    551,230.68x = 760,742.46 × 309,529.32
  4. Step 4: Simplify right side
    551,230.68x = 235,472,096,338.93
  5. Step 5: Solve for x
    x = 235,472,096,338.93/551,230.68
  6. Step 6: Final answer
    x = 427,175.24

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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.