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Finding the Fourth Proportional to 862,932.40, 1,294,981.76 and 301,971.76

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Solution

The fourth proportional to 862,932.40, 1,294,981.76 and 301,971.76 is: 453,161.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,932.40 : 1,294,981.76 = 301,971.76 : x
  2. Step 2: Convert to fraction form
    862,932.40/1,294,981.76 = 301,971.76/x
  3. Step 3: Cross multiply
    862,932.40x = 1,294,981.76 × 301,971.76
  4. Step 4: Simplify right side
    862,932.40x = 391,047,921,235.10
  5. Step 5: Solve for x
    x = 391,047,921,235.10/862,932.40
  6. Step 6: Final answer
    x = 453,161.71

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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.