Home / 487,960.10-731,903.70-203,577.20

Finding the Fourth Proportional to 487,960.10, 731,903.70 and 203,577.20

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Solution

The fourth proportional to 487,960.10, 731,903.70 and 203,577.20 is: 305,350.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,960.10 : 731,903.70 = 203,577.20 : x
  2. Step 2: Convert to fraction form
    487,960.10/731,903.70 = 203,577.20/x
  3. Step 3: Cross multiply
    487,960.10x = 731,903.70 × 203,577.20
  4. Step 4: Simplify right side
    487,960.10x = 148,998,905,915.64
  5. Step 5: Solve for x
    x = 148,998,905,915.64/487,960.10
  6. Step 6: Final answer
    x = 305,350.59

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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.