Home / 1,313,894.10-1,971,359.55-515,039.70

Finding the Fourth Proportional to 1,313,894.10, 1,971,359.55 and 515,039.70

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Solution

The fourth proportional to 1,313,894.10, 1,971,359.55 and 515,039.70 is: 772,762.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,894.10 : 1,971,359.55 = 515,039.70 : x
  2. Step 2: Convert to fraction form
    1,313,894.10/1,971,359.55 = 515,039.70/x
  3. Step 3: Cross multiply
    1,313,894.10x = 1,971,359.55 × 515,039.70
  4. Step 4: Simplify right side
    1,313,894.10x = 1,015,328,431,224.14
  5. Step 5: Solve for x
    x = 1,015,328,431,224.14/1,313,894.10
  6. Step 6: Final answer
    x = 772,762.76

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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.