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Finding the Fourth Proportional to 490,344.55, 676,859.03 and 368,189.81

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Solution

The fourth proportional to 490,344.55, 676,859.03 and 368,189.81 is: 508,239.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,344.55 : 676,859.03 = 368,189.81 : x
  2. Step 2: Convert to fraction form
    490,344.55/676,859.03 = 368,189.81/x
  3. Step 3: Cross multiply
    490,344.55x = 676,859.03 × 368,189.81
  4. Step 4: Simplify right side
    490,344.55x = 249,212,595,879.02
  5. Step 5: Solve for x
    x = 249,212,595,879.02/490,344.55
  6. Step 6: Final answer
    x = 508,239.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.