Home / 645,221.10-965,863.35-574,362.30

Finding the Fourth Proportional to 645,221.10, 965,863.35 and 574,362.30

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Solution

The fourth proportional to 645,221.10, 965,863.35 and 574,362.30 is: 859,791.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,221.10 : 965,863.35 = 574,362.30 : x
  2. Step 2: Convert to fraction form
    645,221.10/965,863.35 = 574,362.30/x
  3. Step 3: Cross multiply
    645,221.10x = 965,863.35 × 574,362.30
  4. Step 4: Simplify right side
    645,221.10x = 554,755,495,191.71
  5. Step 5: Solve for x
    x = 554,755,495,191.71/645,221.10
  6. Step 6: Final answer
    x = 859,791.31

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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.