Home / 1,120,517.40-1,682,525.70-648,125.40

Finding the Fourth Proportional to 1,120,517.40, 1,682,525.70 and 648,125.40

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Solution

The fourth proportional to 1,120,517.40, 1,682,525.70 and 648,125.40 is: 973,200.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,517.40 : 1,682,525.70 = 648,125.40 : x
  2. Step 2: Convert to fraction form
    1,120,517.40/1,682,525.70 = 648,125.40/x
  3. Step 3: Cross multiply
    1,120,517.40x = 1,682,525.70 × 648,125.40
  4. Step 4: Simplify right side
    1,120,517.40x = 1,090,487,642,322.78
  5. Step 5: Solve for x
    x = 1,090,487,642,322.78/1,120,517.40
  6. Step 6: Final answer
    x = 973,200.10

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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.