Home / 1,290,303.46-1,780,625.70-709,564.04

Finding the Fourth Proportional to 1,290,303.46, 1,780,625.70 and 709,564.04

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Solution

The fourth proportional to 1,290,303.46, 1,780,625.70 and 709,564.04 is: 979,202.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,303.46 : 1,780,625.70 = 709,564.04 : x
  2. Step 2: Convert to fraction form
    1,290,303.46/1,780,625.70 = 709,564.04/x
  3. Step 3: Cross multiply
    1,290,303.46x = 1,780,625.70 × 709,564.04
  4. Step 4: Simplify right side
    1,290,303.46x = 1,263,467,965,419.83
  5. Step 5: Solve for x
    x = 1,263,467,965,419.83/1,290,303.46
  6. Step 6: Final answer
    x = 979,202.18

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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.