Home / 686,070.72-1,029,012.66-180,589.37

Finding the Fourth Proportional to 686,070.72, 1,029,012.66 and 180,589.37

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Solution

The fourth proportional to 686,070.72, 1,029,012.66 and 180,589.37 is: 270,859.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,070.72 : 1,029,012.66 = 180,589.37 : x
  2. Step 2: Convert to fraction form
    686,070.72/1,029,012.66 = 180,589.37/x
  3. Step 3: Cross multiply
    686,070.72x = 1,029,012.66 × 180,589.37
  4. Step 4: Simplify right side
    686,070.72x = 185,828,742,846.36
  5. Step 5: Solve for x
    x = 185,828,742,846.36/686,070.72
  6. Step 6: Final answer
    x = 270,859.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.