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Finding the Fourth Proportional to 486,370.60, 730,016.70 and 299,746.60

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Solution

The fourth proportional to 486,370.60, 730,016.70 and 299,746.60 is: 449,903.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,370.60 : 730,016.70 = 299,746.60 : x
  2. Step 2: Convert to fraction form
    486,370.60/730,016.70 = 299,746.60/x
  3. Step 3: Cross multiply
    486,370.60x = 730,016.70 × 299,746.60
  4. Step 4: Simplify right side
    486,370.60x = 218,820,023,768.22
  5. Step 5: Solve for x
    x = 218,820,023,768.22/486,370.60
  6. Step 6: Final answer
    x = 449,903.89

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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.