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Finding the Fourth Proportional to 659,676.68, 909,884.50 and 605,404.12

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Solution

The fourth proportional to 659,676.68, 909,884.50 and 605,404.12 is: 835,026.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,676.68 : 909,884.50 = 605,404.12 : x
  2. Step 2: Convert to fraction form
    659,676.68/909,884.50 = 605,404.12/x
  3. Step 3: Cross multiply
    659,676.68x = 909,884.50 × 605,404.12
  4. Step 4: Simplify right side
    659,676.68x = 550,847,825,024.14
  5. Step 5: Solve for x
    x = 550,847,825,024.14/659,676.68
  6. Step 6: Final answer
    x = 835,026.98

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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.