Home / 487,968.10-731,915.70-203,585.20

Finding the Fourth Proportional to 487,968.10, 731,915.70 and 203,585.20

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Solution

The fourth proportional to 487,968.10, 731,915.70 and 203,585.20 is: 305,362.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,968.10 : 731,915.70 = 203,585.20 : x
  2. Step 2: Convert to fraction form
    487,968.10/731,915.70 = 203,585.20/x
  3. Step 3: Cross multiply
    487,968.10x = 731,915.70 × 203,585.20
  4. Step 4: Simplify right side
    487,968.10x = 149,007,204,167.64
  5. Step 5: Solve for x
    x = 149,007,204,167.64/487,968.10
  6. Step 6: Final answer
    x = 305,362.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.