Home / 497,975.30-687,259.14-304,496.41

Finding the Fourth Proportional to 497,975.30, 687,259.14 and 304,496.41

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Solution

The fourth proportional to 497,975.30, 687,259.14 and 304,496.41 is: 420,237.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,975.30 : 687,259.14 = 304,496.41 : x
  2. Step 2: Convert to fraction form
    497,975.30/687,259.14 = 304,496.41/x
  3. Step 3: Cross multiply
    497,975.30x = 687,259.14 × 304,496.41
  4. Step 4: Simplify right side
    497,975.30x = 209,267,939,347.21
  5. Step 5: Solve for x
    x = 209,267,939,347.21/497,975.30
  6. Step 6: Final answer
    x = 420,237.59

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1.5x scale

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.