Home / 551,942.09-761,687.31-310,210.55

Finding the Fourth Proportional to 551,942.09, 761,687.31 and 310,210.55

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Solution

The fourth proportional to 551,942.09, 761,687.31 and 310,210.55 is: 428,094.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,942.09 : 761,687.31 = 310,210.55 : x
  2. Step 2: Convert to fraction form
    551,942.09/761,687.31 = 310,210.55/x
  3. Step 3: Cross multiply
    551,942.09x = 761,687.31 × 310,210.55
  4. Step 4: Simplify right side
    551,942.09x = 236,283,439,363.12
  5. Step 5: Solve for x
    x = 236,283,439,363.12/551,942.09
  6. Step 6: Final answer
    x = 428,094.62

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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.