Home / 1,313,780.61-1,813,040.85-770,070.54

Finding the Fourth Proportional to 1,313,780.61, 1,813,040.85 and 770,070.54

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Solution

The fourth proportional to 1,313,780.61, 1,813,040.85 and 770,070.54 is: 1,062,711.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,780.61 : 1,813,040.85 = 770,070.54 : x
  2. Step 2: Convert to fraction form
    1,313,780.61/1,813,040.85 = 770,070.54/x
  3. Step 3: Cross multiply
    1,313,780.61x = 1,813,040.85 × 770,070.54
  4. Step 4: Simplify right side
    1,313,780.61x = 1,396,169,346,401.56
  5. Step 5: Solve for x
    x = 1,396,169,346,401.56/1,313,780.61
  6. Step 6: Final answer
    x = 1,062,711.18

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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.