Home / 999,574.56-1,379,408.76-540,689.40

Finding the Fourth Proportional to 999,574.56, 1,379,408.76 and 540,689.40

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Solution

The fourth proportional to 999,574.56, 1,379,408.76 and 540,689.40 is: 746,149.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,574.56 : 1,379,408.76 = 540,689.40 : x
  2. Step 2: Convert to fraction form
    999,574.56/1,379,408.76 = 540,689.40/x
  3. Step 3: Cross multiply
    999,574.56x = 1,379,408.76 × 540,689.40
  4. Step 4: Simplify right side
    999,574.56x = 745,831,694,799.14
  5. Step 5: Solve for x
    x = 745,831,694,799.14/999,574.56
  6. Step 6: Final answer
    x = 746,149.14

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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.