Home / 783,864.32-1,081,962.97-511,973.78

Finding the Fourth Proportional to 783,864.32, 1,081,962.97 and 511,973.78

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Solution

The fourth proportional to 783,864.32, 1,081,962.97 and 511,973.78 is: 706,674.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,864.32 : 1,081,962.97 = 511,973.78 : x
  2. Step 2: Convert to fraction form
    783,864.32/1,081,962.97 = 511,973.78/x
  3. Step 3: Cross multiply
    783,864.32x = 1,081,962.97 × 511,973.78
  4. Step 4: Simplify right side
    783,864.32x = 553,936,664,881.18
  5. Step 5: Solve for x
    x = 553,936,664,881.18/783,864.32
  6. Step 6: Final answer
    x = 706,674.17

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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.