Home / 1,290,283.88-1,780,637.40-709,551.26

Finding the Fourth Proportional to 1,290,283.88, 1,780,637.40 and 709,551.26

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Solution

The fourth proportional to 1,290,283.88, 1,780,637.40 and 709,551.26 is: 979,205.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,283.88 : 1,780,637.40 = 709,551.26 : x
  2. Step 2: Convert to fraction form
    1,290,283.88/1,780,637.40 = 709,551.26/x
  3. Step 3: Cross multiply
    1,290,283.88x = 1,780,637.40 × 709,551.26
  4. Step 4: Simplify right side
    1,290,283.88x = 1,263,453,510,773.12
  5. Step 5: Solve for x
    x = 1,263,453,510,773.12/1,290,283.88
  6. Step 6: Final answer
    x = 979,205.84

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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.