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Finding the Fourth Proportional to 648,082.60, 973,290.30 and 470,789.80

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Solution

The fourth proportional to 648,082.60, 973,290.30 and 470,789.80 is: 707,032.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,082.60 : 973,290.30 = 470,789.80 : x
  2. Step 2: Convert to fraction form
    648,082.60/973,290.30 = 470,789.80/x
  3. Step 3: Cross multiply
    648,082.60x = 973,290.30 × 470,789.80
  4. Step 4: Simplify right side
    648,082.60x = 458,215,145,678.94
  5. Step 5: Solve for x
    x = 458,215,145,678.94/648,082.60
  6. Step 6: Final answer
    x = 707,032.01

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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.