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Finding the Fourth Proportional to 648,826.40, 973,239.60 and 470,496.80

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Solution

The fourth proportional to 648,826.40, 973,239.60 and 470,496.80 is: 705,745.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,826.40 : 973,239.60 = 470,496.80 : x
  2. Step 2: Convert to fraction form
    648,826.40/973,239.60 = 470,496.80/x
  3. Step 3: Cross multiply
    648,826.40x = 973,239.60 × 470,496.80
  4. Step 4: Simplify right side
    648,826.40x = 457,906,117,433.28
  5. Step 5: Solve for x
    x = 457,906,117,433.28/648,826.40
  6. Step 6: Final answer
    x = 705,745.20

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Similar ratio
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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.