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Finding the Fourth Proportional to 654,615.60, 982,221.48 and 317,474.16

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Solution

The fourth proportional to 654,615.60, 982,221.48 and 317,474.16 is: 476,355.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,615.60 : 982,221.48 = 317,474.16 : x
  2. Step 2: Convert to fraction form
    654,615.60/982,221.48 = 317,474.16/x
  3. Step 3: Cross multiply
    654,615.60x = 982,221.48 × 317,474.16
  4. Step 4: Simplify right side
    654,615.60x = 311,829,939,296.96
  5. Step 5: Solve for x
    x = 311,829,939,296.96/654,615.60
  6. Step 6: Final answer
    x = 476,355.80

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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.