Home / 1,168,782.32-1,612,944.78-645,491.36

Finding the Fourth Proportional to 1,168,782.32, 1,612,944.78 and 645,491.36

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Solution

The fourth proportional to 1,168,782.32, 1,612,944.78 and 645,491.36 is: 890,791.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,782.32 : 1,612,944.78 = 645,491.36 : x
  2. Step 2: Convert to fraction form
    1,168,782.32/1,612,944.78 = 645,491.36/x
  3. Step 3: Cross multiply
    1,168,782.32x = 1,612,944.78 × 645,491.36
  4. Step 4: Simplify right side
    1,168,782.32x = 1,041,141,919,647.10
  5. Step 5: Solve for x
    x = 1,041,141,919,647.10/1,168,782.32
  6. Step 6: Final answer
    x = 890,791.98

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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.