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Finding the Fourth Proportional to 641,205.20, 960,540.60 and 562,408.40

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Solution

The fourth proportional to 641,205.20, 960,540.60 and 562,408.40 is: 842,501.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,205.20 : 960,540.60 = 562,408.40 : x
  2. Step 2: Convert to fraction form
    641,205.20/960,540.60 = 562,408.40/x
  3. Step 3: Cross multiply
    641,205.20x = 960,540.60 × 562,408.40
  4. Step 4: Simplify right side
    641,205.20x = 540,216,101,981.04
  5. Step 5: Solve for x
    x = 540,216,101,981.04/641,205.20
  6. Step 6: Final answer
    x = 842,501.12

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1.5x scale

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.