Home / 989,668.71-1,365,661.11-581,787.72

Finding the Fourth Proportional to 989,668.71, 1,365,661.11 and 581,787.72

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Solution

The fourth proportional to 989,668.71, 1,365,661.11 and 581,787.72 is: 802,819.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,668.71 : 1,365,661.11 = 581,787.72 : x
  2. Step 2: Convert to fraction form
    989,668.71/1,365,661.11 = 581,787.72/x
  3. Step 3: Cross multiply
    989,668.71x = 1,365,661.11 × 581,787.72
  4. Step 4: Simplify right side
    989,668.71x = 794,524,863,479.57
  5. Step 5: Solve for x
    x = 794,524,863,479.57/989,668.71
  6. Step 6: Final answer
    x = 802,819.02

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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.