Home / 1,290,466.62-1,780,797.42-709,684.74

Finding the Fourth Proportional to 1,290,466.62, 1,780,797.42 and 709,684.74

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Solution

The fourth proportional to 1,290,466.62, 1,780,797.42 and 709,684.74 is: 979,339.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,466.62 : 1,780,797.42 = 709,684.74 : x
  2. Step 2: Convert to fraction form
    1,290,466.62/1,780,797.42 = 709,684.74/x
  3. Step 3: Cross multiply
    1,290,466.62x = 1,780,797.42 × 709,684.74
  4. Step 4: Simplify right side
    1,290,466.62x = 1,263,804,754,005.37
  5. Step 5: Solve for x
    x = 1,263,804,754,005.37/1,290,466.62
  6. Step 6: Final answer
    x = 979,339.36

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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.