Home / 486,865.08-671,861.43-272,006.76

Finding the Fourth Proportional to 486,865.08, 671,861.43 and 272,006.76

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Solution

The fourth proportional to 486,865.08, 671,861.43 and 272,006.76 is: 375,362.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,865.08 : 671,861.43 = 272,006.76 : x
  2. Step 2: Convert to fraction form
    486,865.08/671,861.43 = 272,006.76/x
  3. Step 3: Cross multiply
    486,865.08x = 671,861.43 × 272,006.76
  4. Step 4: Simplify right side
    486,865.08x = 182,750,850,743.27
  5. Step 5: Solve for x
    x = 182,750,850,743.27/486,865.08
  6. Step 6: Final answer
    x = 375,362.41

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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.