Home / 497,986.70-687,175.46-283,084.80

Finding the Fourth Proportional to 497,986.70, 687,175.46 and 283,084.80

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Solution

The fourth proportional to 497,986.70, 687,175.46 and 283,084.80 is: 390,630.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,986.70 : 687,175.46 = 283,084.80 : x
  2. Step 2: Convert to fraction form
    497,986.70/687,175.46 = 283,084.80/x
  3. Step 3: Cross multiply
    497,986.70x = 687,175.46 × 283,084.80
  4. Step 4: Simplify right side
    497,986.70x = 194,528,927,659.01
  5. Step 5: Solve for x
    x = 194,528,927,659.01/497,986.70
  6. Step 6: Final answer
    x = 390,630.77

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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.