Home / 999,443.84-1,379,228.38-540,558.90

Finding the Fourth Proportional to 999,443.84, 1,379,228.38 and 540,558.90

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Solution

The fourth proportional to 999,443.84, 1,379,228.38 and 540,558.90 is: 745,969.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,443.84 : 1,379,228.38 = 540,558.90 : x
  2. Step 2: Convert to fraction form
    999,443.84/1,379,228.38 = 540,558.90/x
  3. Step 3: Cross multiply
    999,443.84x = 1,379,228.38 × 540,558.90
  4. Step 4: Simplify right side
    999,443.84x = 745,554,174,590.19
  5. Step 5: Solve for x
    x = 745,554,174,590.19/999,443.84
  6. Step 6: Final answer
    x = 745,969.06

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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.