Home / 990,717.06-1,367,608.04-668,863.10

Finding the Fourth Proportional to 990,717.06, 1,367,608.04 and 668,863.10

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Solution

The fourth proportional to 990,717.06, 1,367,608.04 and 668,863.10 is: 923,313.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,717.06 : 1,367,608.04 = 668,863.10 : x
  2. Step 2: Convert to fraction form
    990,717.06/1,367,608.04 = 668,863.10/x
  3. Step 3: Cross multiply
    990,717.06x = 1,367,608.04 × 668,863.10
  4. Step 4: Simplify right side
    990,717.06x = 914,742,553,219.32
  5. Step 5: Solve for x
    x = 914,742,553,219.32/990,717.06
  6. Step 6: Final answer
    x = 923,313.62

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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.