Home / 421,582.49-581,840.11-237,858.78

Finding the Fourth Proportional to 421,582.49, 581,840.11 and 237,858.78

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Solution

The fourth proportional to 421,582.49, 581,840.11 and 237,858.78 is: 328,276.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,582.49 : 581,840.11 = 237,858.78 : x
  2. Step 2: Convert to fraction form
    421,582.49/581,840.11 = 237,858.78/x
  3. Step 3: Cross multiply
    421,582.49x = 581,840.11 × 237,858.78
  4. Step 4: Simplify right side
    421,582.49x = 138,395,777,926.04
  5. Step 5: Solve for x
    x = 138,395,777,926.04/421,582.49
  6. Step 6: Final answer
    x = 328,276.87

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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.