Home / 487,927.85-731,709.75-167,989.34

Finding the Fourth Proportional to 487,927.85, 731,709.75 and 167,989.34

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Solution

The fourth proportional to 487,927.85, 731,709.75 and 167,989.34 is: 251,921.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,927.85 : 731,709.75 = 167,989.34 : x
  2. Step 2: Convert to fraction form
    487,927.85/731,709.75 = 167,989.34/x
  3. Step 3: Cross multiply
    487,927.85x = 731,709.75 × 167,989.34
  4. Step 4: Simplify right side
    487,927.85x = 122,919,439,803.34
  5. Step 5: Solve for x
    x = 122,919,439,803.34/487,927.85
  6. Step 6: Final answer
    x = 251,921.35

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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.