Home / 551,964.63-761,732.79-310,246.47

Finding the Fourth Proportional to 551,964.63, 761,732.79 and 310,246.47

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Solution

The fourth proportional to 551,964.63, 761,732.79 and 310,246.47 is: 428,152.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,964.63 : 761,732.79 = 310,246.47 : x
  2. Step 2: Convert to fraction form
    551,964.63/761,732.79 = 310,246.47/x
  3. Step 3: Cross multiply
    551,964.63x = 761,732.79 × 310,246.47
  4. Step 4: Simplify right side
    551,964.63x = 236,324,909,180.75
  5. Step 5: Solve for x
    x = 236,324,909,180.75/551,964.63
  6. Step 6: Final answer
    x = 428,152.27

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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.