Home / 1,313,520.28-1,812,616.86-770,018.05

Finding the Fourth Proportional to 1,313,520.28, 1,812,616.86 and 770,018.05

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Solution

The fourth proportional to 1,313,520.28, 1,812,616.86 and 770,018.05 is: 1,062,600.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,520.28 : 1,812,616.86 = 770,018.05 : x
  2. Step 2: Convert to fraction form
    1,313,520.28/1,812,616.86 = 770,018.05/x
  3. Step 3: Cross multiply
    1,313,520.28x = 1,812,616.86 × 770,018.05
  4. Step 4: Simplify right side
    1,313,520.28x = 1,395,747,699,934.32
  5. Step 5: Solve for x
    x = 1,395,747,699,934.32/1,313,520.28
  6. Step 6: Final answer
    x = 1,062,600.80

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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.