Home / 695,271.28-1,043,019.72-215,386.96

Finding the Fourth Proportional to 695,271.28, 1,043,019.72 and 215,386.96

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Solution

The fourth proportional to 695,271.28, 1,043,019.72 and 215,386.96 is: 323,115.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,271.28 : 1,043,019.72 = 215,386.96 : x
  2. Step 2: Convert to fraction form
    695,271.28/1,043,019.72 = 215,386.96/x
  3. Step 3: Cross multiply
    695,271.28x = 1,043,019.72 × 215,386.96
  4. Step 4: Simplify right side
    695,271.28x = 224,652,846,710.85
  5. Step 5: Solve for x
    x = 224,652,846,710.85/695,271.28
  6. Step 6: Final answer
    x = 323,115.38

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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.