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Finding the Fourth Proportional to 605,021.10, 907,531.65 and 577,464.90

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Solution

The fourth proportional to 605,021.10, 907,531.65 and 577,464.90 is: 866,197.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,021.10 : 907,531.65 = 577,464.90 : x
  2. Step 2: Convert to fraction form
    605,021.10/907,531.65 = 577,464.90/x
  3. Step 3: Cross multiply
    605,021.10x = 907,531.65 × 577,464.90
  4. Step 4: Simplify right side
    605,021.10x = 524,067,673,514.09
  5. Step 5: Solve for x
    x = 524,067,673,514.09/605,021.10
  6. Step 6: Final answer
    x = 866,197.35

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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.