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Finding the Fourth Proportional to 641,203.20, 960,537.60 and 562,406.40

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Solution

The fourth proportional to 641,203.20, 960,537.60 and 562,406.40 is: 842,498.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,203.20 : 960,537.60 = 562,406.40 : x
  2. Step 2: Convert to fraction form
    641,203.20/960,537.60 = 562,406.40/x
  3. Step 3: Cross multiply
    641,203.20x = 960,537.60 × 562,406.40
  4. Step 4: Simplify right side
    641,203.20x = 540,212,493,680.64
  5. Step 5: Solve for x
    x = 540,212,493,680.64/641,203.20
  6. Step 6: Final answer
    x = 842,498.12

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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.