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Finding the Fourth Proportional to 648,502.60, 973,920.30 and 471,209.80

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Solution

The fourth proportional to 648,502.60, 973,920.30 and 471,209.80 is: 707,662.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,502.60 : 973,920.30 = 471,209.80 : x
  2. Step 2: Convert to fraction form
    648,502.60/973,920.30 = 471,209.80/x
  3. Step 3: Cross multiply
    648,502.60x = 973,920.30 × 471,209.80
  4. Step 4: Simplify right side
    648,502.60x = 458,920,789,778.94
  5. Step 5: Solve for x
    x = 458,920,789,778.94/648,502.60
  6. Step 6: Final answer
    x = 707,662.22

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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.