Home / 999,429.61-1,379,208.54-540,544.62

Finding the Fourth Proportional to 999,429.61, 1,379,208.54 and 540,544.62

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Solution

The fourth proportional to 999,429.61, 1,379,208.54 and 540,544.62 is: 745,949.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,429.61 : 1,379,208.54 = 540,544.62 : x
  2. Step 2: Convert to fraction form
    999,429.61/1,379,208.54 = 540,544.62/x
  3. Step 3: Cross multiply
    999,429.61x = 1,379,208.54 × 540,544.62
  4. Step 4: Simplify right side
    999,429.61x = 745,523,750,196.78
  5. Step 5: Solve for x
    x = 745,523,750,196.78/999,429.61
  6. Step 6: Final answer
    x = 745,949.23

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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.