Home / 859,470.78-1,186,000.14-496,917.90

Finding the Fourth Proportional to 859,470.78, 1,186,000.14 and 496,917.90

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Solution

The fourth proportional to 859,470.78, 1,186,000.14 and 496,917.90 is: 685,706.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,470.78 : 1,186,000.14 = 496,917.90 : x
  2. Step 2: Convert to fraction form
    859,470.78/1,186,000.14 = 496,917.90/x
  3. Step 3: Cross multiply
    859,470.78x = 1,186,000.14 × 496,917.90
  4. Step 4: Simplify right side
    859,470.78x = 589,344,698,968.51
  5. Step 5: Solve for x
    x = 589,344,698,968.51/859,470.78
  6. Step 6: Final answer
    x = 685,706.50

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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.