Home / 497,949.81-687,124.67-283,047.90

Finding the Fourth Proportional to 497,949.81, 687,124.67 and 283,047.90

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Solution

The fourth proportional to 497,949.81, 687,124.67 and 283,047.90 is: 390,579.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,949.81 : 687,124.67 = 283,047.90 : x
  2. Step 2: Convert to fraction form
    497,949.81/687,124.67 = 283,047.90/x
  3. Step 3: Cross multiply
    497,949.81x = 687,124.67 × 283,047.90
  4. Step 4: Simplify right side
    497,949.81x = 194,489,193,466.45
  5. Step 5: Solve for x
    x = 194,489,193,466.45/497,949.81
  6. Step 6: Final answer
    x = 390,579.91

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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.