Home / 1,168,785.32-1,612,948.92-645,494.36

Finding the Fourth Proportional to 1,168,785.32, 1,612,948.92 and 645,494.36

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Solution

The fourth proportional to 1,168,785.32, 1,612,948.92 and 645,494.36 is: 890,796.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,785.32 : 1,612,948.92 = 645,494.36 : x
  2. Step 2: Convert to fraction form
    1,168,785.32/1,612,948.92 = 645,494.36/x
  3. Step 3: Cross multiply
    1,168,785.32x = 1,612,948.92 × 645,494.36
  4. Step 4: Simplify right side
    1,168,785.32x = 1,041,149,430,828.09
  5. Step 5: Solve for x
    x = 1,041,149,430,828.09/1,168,785.32
  6. Step 6: Final answer
    x = 890,796.12

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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.