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Finding the Fourth Proportional to 1,792,904.90, 2,689,357.35 and 670,828.10

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Solution

The fourth proportional to 1,792,904.90, 2,689,357.35 and 670,828.10 is: 1,006,242.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792,904.90 : 2,689,357.35 = 670,828.10 : x
  2. Step 2: Convert to fraction form
    1,792,904.90/2,689,357.35 = 670,828.10/x
  3. Step 3: Cross multiply
    1,792,904.90x = 2,689,357.35 × 670,828.10
  4. Step 4: Simplify right side
    1,792,904.90x = 1,804,096,481,321.54
  5. Step 5: Solve for x
    x = 1,804,096,481,321.54/1,792,904.90
  6. Step 6: Final answer
    x = 1,006,242.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.