Home / 1,190,911.79-1,643,404.70-674,655.13

Finding the Fourth Proportional to 1,190,911.79, 1,643,404.70 and 674,655.13

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Solution

The fourth proportional to 1,190,911.79, 1,643,404.70 and 674,655.13 is: 930,993.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,911.79 : 1,643,404.70 = 674,655.13 : x
  2. Step 2: Convert to fraction form
    1,190,911.79/1,643,404.70 = 674,655.13/x
  3. Step 3: Cross multiply
    1,190,911.79x = 1,643,404.70 × 674,655.13
  4. Step 4: Simplify right side
    1,190,911.79x = 1,108,731,409,099.24
  5. Step 5: Solve for x
    x = 1,108,731,409,099.24/1,190,911.79
  6. Step 6: Final answer
    x = 930,993.73

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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.