Home / 497,991.24-687,281.09-304,512.35

Finding the Fourth Proportional to 497,991.24, 687,281.09 and 304,512.35

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Solution

The fourth proportional to 497,991.24, 687,281.09 and 304,512.35 is: 420,259.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,991.24 : 687,281.09 = 304,512.35 : x
  2. Step 2: Convert to fraction form
    497,991.24/687,281.09 = 304,512.35/x
  3. Step 3: Cross multiply
    497,991.24x = 687,281.09 × 304,512.35
  4. Step 4: Simplify right side
    497,991.24x = 209,285,574,867.49
  5. Step 5: Solve for x
    x = 209,285,574,867.49/497,991.24
  6. Step 6: Final answer
    x = 420,259.55

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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.