Home / 776,694.25-1,071,285.82-518,440.96

Finding the Fourth Proportional to 776,694.25, 1,071,285.82 and 518,440.96

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Solution

The fourth proportional to 776,694.25, 1,071,285.82 and 518,440.96 is: 715,079.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,694.25 : 1,071,285.82 = 518,440.96 : x
  2. Step 2: Convert to fraction form
    776,694.25/1,071,285.82 = 518,440.96/x
  3. Step 3: Cross multiply
    776,694.25x = 1,071,285.82 × 518,440.96
  4. Step 4: Simplify right side
    776,694.25x = 555,398,448,955.19
  5. Step 5: Solve for x
    x = 555,398,448,955.19/776,694.25
  6. Step 6: Final answer
    x = 715,079.90

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1.5x scale

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.