Home / 724,716-1,085,890.14-440,493.48

Finding the Fourth Proportional to 724,716, 1,085,890.14 and 440,493.48

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Solution

The fourth proportional to 724,716, 1,085,890.14 and 440,493.48 is: 660,020.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,716 : 1,085,890.14 = 440,493.48 : x
  2. Step 2: Convert to fraction form
    724,716/1,085,890.14 = 440,493.48/x
  3. Step 3: Cross multiply
    724,716x = 1,085,890.14 × 440,493.48
  4. Step 4: Simplify right side
    724,716x = 478,327,526,666.29
  5. Step 5: Solve for x
    x = 478,327,526,666.29/724,716
  6. Step 6: Final answer
    x = 660,020.65

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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.