Home / 1,231,704-1,847,609.76-390,317.76

Finding the Fourth Proportional to 1,231,704, 1,847,609.76 and 390,317.76

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Solution

The fourth proportional to 1,231,704, 1,847,609.76 and 390,317.76 is: 585,493.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,704 : 1,847,609.76 = 390,317.76 : x
  2. Step 2: Convert to fraction form
    1,231,704/1,847,609.76 = 390,317.76/x
  3. Step 3: Cross multiply
    1,231,704x = 1,847,609.76 × 390,317.76
  4. Step 4: Simplify right side
    1,231,704x = 721,154,902,877.34
  5. Step 5: Solve for x
    x = 721,154,902,877.34/1,231,704
  6. Step 6: Final answer
    x = 585,493.68

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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.