Home / 999,433.69-1,379,214.38-540,548.78

Finding the Fourth Proportional to 999,433.69, 1,379,214.38 and 540,548.78

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Solution

The fourth proportional to 999,433.69, 1,379,214.38 and 540,548.78 is: 745,955.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,433.69 : 1,379,214.38 = 540,548.78 : x
  2. Step 2: Convert to fraction form
    999,433.69/1,379,214.38 = 540,548.78/x
  3. Step 3: Cross multiply
    999,433.69x = 1,379,214.38 × 540,548.78
  4. Step 4: Simplify right side
    999,433.69x = 745,532,644,922.76
  5. Step 5: Solve for x
    x = 745,532,644,922.76/999,433.69
  6. Step 6: Final answer
    x = 745,955.09

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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.