Home / 1,151,686.80-1,728,307.80-646,246.80

Finding the Fourth Proportional to 1,151,686.80, 1,728,307.80 and 646,246.80

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Solution

The fourth proportional to 1,151,686.80, 1,728,307.80 and 646,246.80 is: 969,806.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,686.80 : 1,728,307.80 = 646,246.80 : x
  2. Step 2: Convert to fraction form
    1,151,686.80/1,728,307.80 = 646,246.80/x
  3. Step 3: Cross multiply
    1,151,686.80x = 1,728,307.80 × 646,246.80
  4. Step 4: Simplify right side
    1,151,686.80x = 1,116,913,385,165.04
  5. Step 5: Solve for x
    x = 1,116,913,385,165.04/1,151,686.80
  6. Step 6: Final answer
    x = 969,806.54

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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.