Home / 930,687.40-1,396,031.10-868,018.60

Finding the Fourth Proportional to 930,687.40, 1,396,031.10 and 868,018.60

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Solution

The fourth proportional to 930,687.40, 1,396,031.10 and 868,018.60 is: 1,302,027.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,687.40 : 1,396,031.10 = 868,018.60 : x
  2. Step 2: Convert to fraction form
    930,687.40/1,396,031.10 = 868,018.60/x
  3. Step 3: Cross multiply
    930,687.40x = 1,396,031.10 × 868,018.60
  4. Step 4: Simplify right side
    930,687.40x = 1,211,780,960,978.46
  5. Step 5: Solve for x
    x = 1,211,780,960,978.46/930,687.40
  6. Step 6: Final answer
    x = 1,302,027.90

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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.