Home / 995,411.34-1,373,786.28-628,421.76

Finding the Fourth Proportional to 995,411.34, 1,373,786.28 and 628,421.76

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Solution

The fourth proportional to 995,411.34, 1,373,786.28 and 628,421.76 is: 867,296.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,411.34 : 1,373,786.28 = 628,421.76 : x
  2. Step 2: Convert to fraction form
    995,411.34/1,373,786.28 = 628,421.76/x
  3. Step 3: Cross multiply
    995,411.34x = 1,373,786.28 × 628,421.76
  4. Step 4: Simplify right side
    995,411.34x = 863,317,191,941.45
  5. Step 5: Solve for x
    x = 863,317,191,941.45/995,411.34
  6. Step 6: Final answer
    x = 867,296.92

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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.