Home / 551,131.41-760,605.26-309,429.84

Finding the Fourth Proportional to 551,131.41, 760,605.26 and 309,429.84

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Solution

The fourth proportional to 551,131.41, 760,605.26 and 309,429.84 is: 427,037.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,131.41 : 760,605.26 = 309,429.84 : x
  2. Step 2: Convert to fraction form
    551,131.41/760,605.26 = 309,429.84/x
  3. Step 3: Cross multiply
    551,131.41x = 760,605.26 × 309,429.84
  4. Step 4: Simplify right side
    551,131.41x = 235,353,963,904.96
  5. Step 5: Solve for x
    x = 235,353,963,904.96/551,131.41
  6. Step 6: Final answer
    x = 427,037.83

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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.