Home / 505,488,761.20-758,233,141.80-413,655,756.40

Finding the Fourth Proportional to 505,488,761.20, 758,233,141.80 and 413,655,756.40

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Solution

The fourth proportional to 505,488,761.20, 758,233,141.80 and 413,655,756.40 is: 620,483,634.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,488,761.20 : 758,233,141.80 = 413,655,756.40 : x
  2. Step 2: Convert to fraction form
    505,488,761.20/758,233,141.80 = 413,655,756.40/x
  3. Step 3: Cross multiply
    505,488,761.20x = 758,233,141.80 × 413,655,756.40
  4. Step 4: Simplify right side
    505,488,761.20x = 313,647,503,798,827,392
  5. Step 5: Solve for x
    x = 313,647,503,798,827,392/505,488,761.20
  6. Step 6: Final answer
    x = 620,483,634.60

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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.