Home / 999,392.87-1,379,162.22-540,507.32

Finding the Fourth Proportional to 999,392.87, 1,379,162.22 and 540,507.32

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Solution

The fourth proportional to 999,392.87, 1,379,162.22 and 540,507.32 is: 745,900.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,392.87 : 1,379,162.22 = 540,507.32 : x
  2. Step 2: Convert to fraction form
    999,392.87/1,379,162.22 = 540,507.32/x
  3. Step 3: Cross multiply
    999,392.87x = 1,379,162.22 × 540,507.32
  4. Step 4: Simplify right side
    999,392.87x = 745,447,275,377.45
  5. Step 5: Solve for x
    x = 745,447,275,377.45/999,392.87
  6. Step 6: Final answer
    x = 745,900.13

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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.