Home / 457,582.68-631,250.50-287,910.36

Finding the Fourth Proportional to 457,582.68, 631,250.50 and 287,910.36

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Solution

The fourth proportional to 457,582.68, 631,250.50 and 287,910.36 is: 397,181.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,582.68 : 631,250.50 = 287,910.36 : x
  2. Step 2: Convert to fraction form
    457,582.68/631,250.50 = 287,910.36/x
  3. Step 3: Cross multiply
    457,582.68x = 631,250.50 × 287,910.36
  4. Step 4: Simplify right side
    457,582.68x = 181,743,558,705.18
  5. Step 5: Solve for x
    x = 181,743,558,705.18/457,582.68
  6. Step 6: Final answer
    x = 397,181.90

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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.